Food Poisoning Treatment Online - Online Prescription

What Is Food Poisoning and How It Occurs

Food poisoning is an illness that can happen after eating or drinking something contaminated. This means the food or drink may contain harmful germs or toxins. These can include bacteria, viruses, parasites, or substances made by certain germs in food.

Food can become contaminated at many stages. This can happen during production, processing, transport, storage, cooking, or serving. It can also happen at home if food is not handled safely, for example, when raw food comes into contact with ready-to-eat food.

Many cases of food poisoning are mild and get better on their own. Some cases can be more serious, especially for people who are more likely to have complications. Knowing what food poisoning is can help you understand when symptoms may be linked to contaminated food and when you may need medical advice.

Common Food Poisoning Symptoms to Watch For

Food poisoning symptoms can start within a few hours of eating contaminated food. Sometimes, they may take a few days to appear. This depends on the germ or toxin involved. Symptoms can be mild or more serious, and they often affect the stomach and gut first. The European Food Safety Authority, EFSA, says foodborne germs usually enter the body through the gastrointestinal tract, where early symptoms often begin.

The most common symptoms of food poisoning include:

Symptom	What It May Feel Like
Nausea	Feeling sick or if you vomit
Vomiting	Being sick, sometimes again and again
Diarrhoea	Loose, watery stools, which may sometimes contain blood or mucus
Stomach cramps	Pain, tightness, or cramping in the tummy
Abdominal pain	General pain or discomfort in the tummy
Fever	A high temperature, chills, or feeling hot and shivery
Weakness	Feeling tired, drained, or low on energy
Loss of appetite	Not feeling able or wanting to eat
Headache	Head pain, sometimes linked to dehydration
Muscle aches	Body aches, which can happen with some infections

Most people start to feel better within a few days, but symptoms should be watched closely. Seek medical advice if you have severe diarrhoea, blood in your stool, a high fever, repeated vomiting, signs of dehydration, or symptoms that are not getting better. Signs of dehydration can include a very dry mouth, dizziness, passing very little urine, or dark coloured urine.

People at higher risk, including older adults, pregnant women, and people with weakened immune systems, should get medical advice sooner. This is because food poisoning can sometimes lead to complications. For European food safety information, you can refer to EFSA’s food poisoning guidance.

What Causes Food Poisoning and How It Spreads

Food poisoning is usually caused by eating or drinking food or water contaminated with harmful germs, toxins, or chemicals. Food can become contaminated at any stage, from growing and processing to storage, cooking, and serving. In the EU, common foodborne illnesses are often linked to bacteria such as Campylobacter, Salmonella, Yersinia, E. coli, and Listeria.

The main causes of food poisoning include:

Cause	How It Can Contaminate Food	Common Examples
Bacteria	Bacteria can grow in undercooked food, improperly stored food, or food handled without good hygiene.	Salmonella, Campylobacter, E. coli, Listeria
Viruses	Viruses can spread through food, water, surfaces, or food handlers who are unwell or have not washed their hands.	Norovirus, hepatitis A
Parasites	Parasites can be found in unsafe water, soil, raw fruit and vegetables, or undercooked meat and fish.	Giardia, Toxoplasma
Natural toxins	Some foods can contain toxins naturally or develop toxins if they are stored badly. Cooking may not always remove them.	Certain wild mushrooms, shellfish toxins
Cross-contamination	Germs can spread from raw foods to ready-to-eat foods through hands, knives, chopping boards, or kitchen surfaces.	Raw chicken juices touching salad or cooked food
Poor temperature control	Bacteria can grow quickly if food is left out too long, not properly chilled, or not reheated properly.	Cooked rice, meat, dairy, leftovers
Contaminated water	Unsafe water can carry germs into drinks, ice, washed produce, or cooked meals.	Untreated water, contaminated ice, salad leaves

Bacterial Causes

Bacteria are one of the most common causes of food poisoning. They may be found in raw meat, poultry, eggs, dairy products, seafood, fresh produce, or ready-to-eat foods that have become contaminated. Some bacteria infect the gut, while others make toxins that can make you unwell.

Common bacterial causes include:

Bacteria	Often Linked To
Salmonella	Raw or undercooked eggs, poultry, meat, unpasteurised dairy, and contaminated produce
Campylobacter	Undercooked poultry, raw milk, contaminated water, and germs spreading from raw meat
E. coli	Undercooked beef, raw milk, contaminated vegetables, and contaminated water
Listeria	Ready-to-eat foods, soft cheeses, chilled deli foods, smoked fish, and unpasteurised dairy
Yersinia	Undercooked pork, contaminated milk, and contaminated water

EFSA says foodborne zoonotic diseases are an important public health concern in Europe. Many of these infections are linked to contaminated food or water.

Viral Causes

Viruses can also cause food poisoning. This can happen when food is handled by someone who is infected, or when food or water becomes contaminated. Unlike bacteria, viruses do not need to grow in food to make someone ill. Even a small amount can cause infection.

Common viral causes include norovirus and hepatitis A. These can spread through dirty hands, surfaces, water, shellfish, fresh produce, or ready-to-eat foods. ECDC includes hepatitis A among the foodborne and waterborne infections monitored in the EU and EEA.

Parasitic Causes

Parasites are less common than bacteria and viruses, but they can still cause food poisoning. They may be found in contaminated water, soil, raw vegetables, undercooked meat, or undercooked fish. Examples include Giardia and Toxoplasma.

Parasitic infections can sometimes cause symptoms that last longer than usual food poisoning, especially if they are not found and treated correctly.

Toxins And Chemical Contamination

Food poisoning can also happen when food contains toxins or harmful chemicals. Some toxins are made by bacteria when food is stored badly. Others are found naturally in certain foods, such as some wild mushrooms or seafood affected by marine toxins.

The European Commission says biological hazards in food include bacteria, viruses, parasites, prions, and biotoxins. Examples include Salmonella, Listeria monocytogenes, and biotoxins in live molluscs.

Cross-Contamination

Cross-contamination happens when germs move from one food, surface, or object to another. This is a common way food poisoning spreads in kitchens and food preparation areas.

For example, bacteria from raw chicken can spread to salad if the same chopping board, knife, or hands are used without proper cleaning. It can also happen when raw meat is stored above cooked or ready-to-eat food in the fridge, and its juices drip onto them.

Poor Food Storage And Handling

Food can become unsafe if it is not stored, chilled, cooked, or reheated properly. Bacteria can grow quickly when high-risk foods are kept at unsafe temperatures or left out for too long.

EFSA says food poisoning can happen when food is not cooked or reheated properly, is handled by someone with poor hand hygiene, is stored at the wrong temperature, is eaten after its use-by date, or comes into contact with animals or insects.

Common examples include:

Food Handling Issue	Why It Increases Risk
Leaving cooked food out too long	Allows bacteria to grow
Not reheating leftovers properly	May not kill harmful germs
Eating food past its use-by date	Raises the risk of unsafe bacterial growth
Storing raw meat near ready-to-eat food	Raises the risk of cross-contamination
Preparing food while unwell	Can spread viruses and bacteria to others
Not washing hands before cooking	Moves germs from hands to food

Contaminated Water

Food poisoning can also be caused by drinking contaminated water or using unsafe water to wash food, make ice, or prepare meals. This may happen during travel, after flooding, in places with poor sanitation, or when untreated water is used.

Contaminated water can carry bacteria, viruses, and parasites. These germs can then spread to fresh produce, seafood, drinks, or cooked food. ECDC says food and waterborne illnesses are often caused by eating contaminated food or drinking contaminated water.

Effective Food Poisoning Treatment Options

Most cases of food poisoning get better with simple home care. This usually means drinking fluids, resting, and eating gentle foods when you feel ready. Treatment depends on how severe your symptoms are, your overall health, and the cause of the illness.

In many mild cases, antibiotics or prescription medicines are not needed.

The main aim of treatment is to prevent dehydration. Dehydration happens when your body loses too much water and important salts, called electrolytes. This can happen if you have repeated vomiting or diarrhoea.

How Food Poisoning Is Usually Treated

Treatment	How It Helps	When It May Be Needed
Fluids	Replaces water lost through vomiting and diarrhoea	Most cases
Oral rehydration solution	Replaces fluids and salts better than water alone	If vomiting or diarrhoea is frequent
Rest	Helps the body recover while symptoms settle	Most cases
Simple foods	Reduces stomach irritation while appetite returns	Once you feel ready to eat
Medicine for symptoms	May help with diarrhoea or nausea in some cases	Only when suitable
Prescription treatment	Treats certain bacterial or parasite infections	If advised by a doctor
Hospital care	Gives fluids through a drip and closer care	Severe dehydration or serious illness

1. Drink Plenty Of Fluids

Fluids are the most important part of treating food poisoning. Vomiting and diarrhoea can make your body lose water and salts, which can lead to dehydration.

Try taking small, regular sips of water, especially if you feel sick. Oral rehydration solutions from a pharmacy can also help replace lost fluids and salts.

You may need urgent medical help if you cannot keep fluids down, feel very dizzy, pass very little urine, or have signs of severe dehydration.

2. Rest While Your Body Recovers

Food poisoning can make you feel weak, tired, and drained. Rest helps your body recover while symptoms improve.

Avoid hard exercise, alcohol, and heavy meals until you feel clearly better.

3. Eat Small, Simple Meals When You Feel Ready

You do not need to force yourself to eat while you feel sick. When your appetite starts to return, begin with small portions of plain, easy-to-digest food.

Good options may include:

Food Type	Examples
Plain carbohydrates	Rice, toast, crackers, pasta, potatoes
Soft fruits	Banana, apple sauce
Light meals	Soup, boiled vegetables, plain chicken
Gentle snacks	Dry toast, plain biscuits, oatcakes

It may help to avoid fatty foods, spicy foods, alcohol, and excessive caffeine until your stomach has settled. Some people may also find dairy harder to tolerate for a short time after diarrhoea.

4. Be Careful With Anti-Diarrhoea Medicines

Some medicines from a pharmacy may reduce diarrhoea, but they are not right for everyone. In some infections, diarrhoea helps the body clear the germ, so stopping it too soon may not be safe.

Avoid taking anti-diarrhoea medicine without medical advice if you have:

Avoid Anti-Diarrhoea Medicine If You Have	Why It Matters
Blood in your stool	May be a sign of a serious infection
High fever	Can be a sign of a stronger infection
Severe abdominal pain	Needs medical advice
Symptoms that continue or get worse	May need testing or treatment
Pregnancy or a higher-risk condition	Medical advice is safer

A doctor or pharmacist can tell you if medicine for diarrhoea or nausea is suitable for you.

5. Prescription Medicines Are Sometimes Needed

Most cases of food poisoning do not require antibiotics. Antibiotics are only used for certain bacterial infections or more serious cases. A doctor will decide if they are needed.

Antibiotics do not work for viral causes, such as norovirus.

If a parasite is suspected or confirmed, a doctor may prescribe medicine to treat it. In rare toxin-related illnesses, such as botulism, urgent specialist treatment may be needed.

6. When Hospital Treatment May Be Needed

Severe food poisoning may require hospital treatment, especially if dehydration is severe or symptoms suggest a more serious infection. Hospital care may include fluids through a drip, blood tests, stool tests, monitoring, and treatment based on the cause.

Seek urgent medical advice if you have:

Warning Sign	Why You Should Get Help
Signs of dehydration	Dry mouth, dizziness, confusion, very little urine, or dark urine
Blood in diarrhoea	May be a sign of a serious infection
Repeated vomiting	Can make dehydration worse
High or lasting fever	May suggest a more serious infection
Severe abdominal pain	Needs medical advice
Symptoms lasting several days	May need testing or treatment
Pregnancy, older age, or weakened immunity	Higher risk of complications

Will Food Poisoning Go Away On Its Own?

Yes, many cases of food poisoning get better on their own within a few days with rest, fluids, and simple care.

However, you should not ignore severe symptoms, dehydration, blood in your stool, a high fever, or symptoms that persist or worsen.

If you are unsure what is causing your symptoms, or you are at higher risk of complications, speak to a doctor for advice.

How to Prevent Food Poisoning Naturally

Food poisoning can often be prevented by following safe food hygiene habits at home, when eating out, and while travelling. The main steps are to keep food clean, keep raw and cooked foods separate, cook food properly, chill food correctly, and use safe water and ingredients.

Key Food Poisoning Prevention Tips

Prevention Step	What To Do	Why It Matters
Wash your hands	Wash your hands with soap and water before preparing food, before eating, after using the toilet, and after touching raw meat, poultry, seafood, or eggs.	Helps stop germs from spreading to food.
Clean surfaces and utensils	Wash chopping boards, knives, plates, and worktops after preparing raw food.	Helps stop germs spreading between foods.
Separate raw and ready-to-eat foods	Use separate chopping boards and utensils for raw meat, seafood, and ready-to-eat foods such as salad or bread.	Helps prevent cross-contamination.
Cook food thoroughly	Make sure meat, poultry, eggs, and seafood are cooked properly before eating.	Heat helps kill harmful germs.
Chill food correctly	Keep your fridge below 5°C and put chilled foods in the fridge quickly.	Slows down the growth of bacteria.
Check use-by dates	Do not eat chilled foods after their use-by date.	Food may be unsafe even if it looks or smells normal.
Reheat leftovers properly	Reheat cooked food until it is steaming hot throughout.	Helps kill germs that may have grown during storage.
Wash fruit and vegetables	Rinse fresh fruit and vegetables under clean running water before eating, peeling, or cooking.	Helps remove dirt and some germs.
Use safe water	Drink and cook with clean water, especially when travelling.	Unsafe water can carry germs and parasites.
Avoid high-risk raw foods	Be careful with raw eggs, undercooked meat, raw seafood, unpasteurised dairy, and unwashed produce.	These foods are more likely to carry harmful germs.

1. Keep Your Hands And Kitchen Clean

Good hygiene is one of the easiest ways to lower the risk of food poisoning. Wash your hands well before handling food, after using the toilet, after touching pets, after handling rubbish, and after preparing raw meat, poultry, fish, or eggs.

Kitchen surfaces, chopping boards, knives, and utensils should be cleaned after touching raw foods. This is especially important before preparing foods that will not be cooked, such as salads, sandwiches, fruit, or ready-to-eat meals.

2. Keep Raw And Cooked Foods Separate

Raw meat, poultry, seafood, and eggs can carry harmful germs. These germs can spread to ready-to-eat foods if the same hands, chopping boards, plates, or utensils are used without cleaning them first.

To reduce the risk:

Do	Avoid
Use separate chopping boards for raw meat and ready-to-eat foods.	Do not place cooked food back on a plate that held raw meat.
Store raw meat in sealed containers.	Do not let raw meat juices drip onto other foods in the fridge.
Wash your hands after handling raw foods.	Do not prepare salad or fruit with unwashed hands after touching raw meat.
Keep raw and cooked foods apart during preparation and storage.	Do not use the same knife for raw chicken and bread or vegetables without washing it first.

3. Cook Food Thoroughly

Properly cooking food helps kill harmful bacteria, viruses, and parasites. This is especially important for poultry, minced meat, burgers, sausages, eggs, fish, and seafood.

Food should be cooked until it is hot all the way through. Meat and poultry should not be pink in the middle, and juices should run clear where needed. A food thermometer can be helpful, especially for large cuts of meat, poultry, reheated food, or meals made for someone at higher risk.

4. Chill And Store Food Safely

Bacteria can grow quickly when food is kept at unsafe temperatures. Chilled foods should be stored in the fridge, and leftovers should be cooled and refrigerated quickly.

Food Storage Tip	Why It Helps
Keep the fridge below 5°C.	Slows down bacterial growth.
Store raw meat on the bottom shelf in a sealed container.	Stops juices from dripping onto other foods.
Refrigerate leftovers quickly once cooled.	Reduces time at unsafe temperatures.
Keep chilled foods cold until ready to eat.	Helps keep food safe.
Do not eat food after its use-by date.	Reduces the risk of eating unsafe food.

5. Be Careful With Leftovers

Leftovers can be safe to eat if they are properly cooled, stored, and reheated. Let cooked food cool before putting it in the fridge, but do not leave it out for too long.

Store leftovers in clean, covered containers and reheat them until they are steaming hot throughout.

Avoid reheating the same food more than once, as repeated cooling and reheating can increase the risk of bacterial growth.

6. Wash Fruit And Vegetables

Fresh fruit, vegetables, and salad leaves can carry dirt, bacteria, or parasites from soil, water, handling, or transport. Wash them under clean running water before eating, peeling, cutting, or cooking.

This is especially important for foods eaten raw, such as lettuce, cucumber, tomatoes, berries, herbs, and prepared salads.

7. Take Extra Care When Travelling

Food poisoning is more likely when travelling to places where food hygiene, water safety, or storage conditions may differ. Use safe drinking water, avoid ice if the water quality is uncertain, and be careful with raw seafood, undercooked meat, unwashed produce, and food left uncovered or kept warm for a long time.

Foods That Need Extra Care

Food	Why It May Be a Higher Risk
Raw or undercooked poultry	Can carry bacteria such as Campylobacter or Salmonella.
Raw or undercooked eggs	May contain Salmonella.
Minced meat and burgers	Germs can spread through the meat during processing.
Raw seafood and shellfish	May contain bacteria, viruses, or natural toxins.
Unpasteurised milk or dairy	Can contain harmful bacteria.
Ready-to-eat chilled foods	Can become unsafe if stored badly or eaten after the use-by date.
Cooked rice and leftovers	Can allow bacteria to grow if improperly cooled or stored.
Unwashed fruit, vegetables, and salad leaves	May carry germs from soil, water, or handling.

When Prevention Is Especially Important

Some people are more likely to become seriously ill from food poisoning. Extra care with food hygiene is especially important for pregnant women, older adults, and people with weakened immune systems.

How Mobi Doctor Can Help

If you feel unwell after eating and your symptoms are not improving, Mobi Doctor can help you speak with a doctor online. A doctor can assess your symptoms, advise on fluids and self-care, and recommend treatment where suitable.

Book an online consultation with Mobi Doctor for medical advice from the comfort of your home.

Food Poisoning Treatment Online FAQs

Food poisoning often starts with nausea, stomach cramps, diarrhoea, vomiting or sudden abdominal pain after eating contaminated food. Some people also develop fever, weakness, bloating, headache or chills within hours of eating, although symptoms can sometimes take days to appear depending on the infection source.

Many mild to moderate cases of food poisoning can initially be assessed online by a licensed EU doctor. During an online medical assessment, Mobi Doctor doctors review vomiting, diarrhoea, fever, dehydration symptoms, recent food exposure and medical history to help determine suitable treatment or whether urgent in-person care is needed.

Food poisoning symptoms often improve within a few hours to several days depending on the cause and overall health of the person affected. Viral food poisoning may settle quickly, while bacterial infections such as Salmonella or E. coli can sometimes last longer and cause more severe digestive symptoms.

Undercooked meat, raw eggs, seafood, unpasteurised dairy products, contaminated water and improperly stored leftovers are common causes of food poisoning. Raw fruits and vegetables can also spread bacteria or parasites if they are not washed properly before eating.

Food poisoning can cause fever, chills, weakness and body aches, especially when bacterial or viral infection triggers a strong immune response. Fever together with severe diarrhoea, vomiting or dehydration may indicate a more significant infection requiring closer medical assessment.

Urgent medical attention is important if food poisoning causes bloody diarrhoea, severe dehydration, persistent vomiting, confusion, high fever, breathing difficulty or inability to keep fluids down. Young children, pregnant women, older adults and people with weakened immune systems have a higher risk of complications.

Bland foods such as bananas, rice, toast, applesauce, crackers and plain potatoes are often easier to tolerate during recovery from food poisoning. Fatty foods, alcohol, spicy meals and excessive dairy products may worsen stomach irritation while the digestive system is recovering.

Vomiting and diarrhoea can quickly lead to dehydration, which may worsen dizziness, weakness, headaches and fatigue during food poisoning. Drinking water, oral rehydration solutions or electrolyte drinks regularly can help replace lost fluids and minerals during recovery. Severe dehydration sometimes requires hospital treatment with IV fluids.

Antibiotics are only used for certain types of bacterial food poisoning and are not helpful for most viral stomach infections. Treatment depends on the specific infection, symptom severity and overall health risks. Mobi Doctor doctors can help assess whether supportive care, hydration advice or prescription treatment may be appropriate after reviewing your symptoms online.

Find a doctor across Europe