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Dr. Chrysoula I. Liakou MD, PhD
- Treated online: Yes, usually. Intertrigo is assessed from clear photos of the open fold plus video, and an antifungal, antiseptic or short anti-inflammatory cream prescribed when it fits; spreading redness with fever or a fold breaking down into an ulcer is in-person care.
- What it is: inflammation of skin folds caused by friction, heat and trapped sweat; the damp, warm skin is then colonised by Candida yeast (with small satellite spots), bacteria (erythrasma, staphylococci or streptococci) or both.
- How long: simple intertrigo improves within days of keeping the fold dry and settles in 1 to 2 weeks; infected intertrigo needs an antifungal or antibacterial cream for 2 to 4 weeks, continued a week after the skin looks normal.
- Dry beats cream: keeping the fold cool, dry and separated is half of intertrigo treatment; no cream fixes a fold that stays damp, and a thin barrier cream plus a soft absorbent layer does more than thick layers of ointment.
- Risk factors: diabetes (higher glucose favours yeast), obesity, heavy sweating, humid weather, tight synthetic clothing, incontinence, immobility and antibiotics all make intertrigo more likely and more stubborn.
- Emergency: call 112 if you develop a high fever with confusion, a rapidly spreading rash, or difficulty breathing.
Online care suits most sore, red skin folds and the fungal or bacterial infections that complicate them. Spreading redness with fever, a fold that is breaking down into an ulcer, or poorly controlled diabetes with a worsening rash need in-person care. See the referral criteria below before booking.
Can an online doctor treat intertrigo?
Often, yes. Intertrigo is inflammation of skin folds caused by friction, moisture and heat, and it is easy to see in clear photographs, so an online doctor can usually assess it and treat any fungal or bacterial infection that has developed on top.[1] Deep, ulcerated or spreading infection, and a poorly controlled underlying condition such as diabetes, need in-person assessment.
How an online consultation helps with intertrigo
- Made for photo assessment: a fold rash is on the surface and well lit by daylight, so a close-up usually shows the doctor what they need, including the tell-tale satellite spots of a yeast overlay.
- Inflammation or infection, told apart: plain friction and moisture damage is managed very differently from a candida or bacterial infection, and the treatment hinges on that distinction.
- A practical skin-fold plan: you leave with the moisture, friction and barrier steps that actually let a fold heal, not just a cream that works against damp skin.
- The drivers addressed: weight, sweating, incontinence and diabetes all feed intertrigo, and the doctor factors them in, or refers you, rather than treating the rash in isolation.
📷 Gently separate the fold and photograph it in daylight: one close-up of the sorest part and one wider shot showing how far it spreads. Note any small spots just beyond the main red area, any white or cheesy film, and whether it stings, itches or smells.
What the doctor checks in an online intertrigo consultation
The assessment is structured around whether the fold is simply irritated or genuinely infected, and by what. In an intertrigo consultation, the doctor will typically assess:
- Which folds are involved: under the breasts, in the groin, the armpits, the abdominal apron, the buttock cleft, between the toes, or the neck creases in babies.
- The look of the rash: a beefy-red patch with small outlying (satellite) spots suggests candida; a well-defined brown, faintly scaly patch suggests erythrasma; an advancing scaly edge suggests a dermatophyte, closer to ringworm.[2]
- Symptoms: stinging, burning, itch, pain, odour or a discharge, which point towards infection rather than simple friction.
- Moisture and friction sources: heavy sweating, humid weather, tight or non-breathable clothing, immobility and incontinence.
- Underlying conditions: diabetes and how well it is controlled, obesity, and anything that weakens the immune system, all of which raise the risk of a yeast overlay.[2]
- What has already been tried: antifungal, antiseptic, barrier or steroid preparations, because a potent steroid in a fold can worsen an untreated infection.
- Look-alikes: inverse psoriasis, seborrhoeic dermatitis and contact dermatitis all favour the folds and can be mistaken for infected intertrigo.
What causes intertrigo, and when it becomes infected
Intertrigo is not an infection in itself. It starts as inflammation where two skin surfaces rub together and trap warmth and moisture: the friction damages the surface, sweat cannot evaporate, and the softened, macerated skin becomes red, raw and sore.[1] That is why it settles in the body folds, is worse in hot weather, and improves the moment the fold is kept cool, dry and separated. Correcting the older idea that intertrigo is simply a bacterial or fungal rash matters, because moisture control is half the treatment and no cream fixes a fold that stays damp.
The moist, warm fold
Skin normally sheds water and cools by evaporation, but in a deep or overlapping fold that airflow is lost. The trapped moisture and heat weaken the skin barrier, and everyday movement adds friction, so a mirror-image patch of soreness forms on both sides of the crease. This is the baseline intertrigo, and on its own it is an irritant, not an infection.
When a fungus or bacterium settles on top
Warm, damp, broken skin is an easy home for micro-organisms, so intertrigo is frequently colonised or secondarily infected. The commonest is the yeast Candida, which gives a bright-red patch with small satellite spots and sometimes a white film.[2] Bacteria such as staphylococci and streptococci can infect it too, and a specific organism, Corynebacterium, causes erythrasma, a brownish, finely scaly version.[5] Dermatophyte fungi, the same family behind athlete’s foot, can also take hold, especially in the groin.[3][4] Identifying which one is present is what steers the prescription.
Intertrigo and diabetes
Diabetes deserves its own mention, because it makes intertrigo both more likely and more stubborn. Higher glucose levels favour yeast growth, and folds that stay red and itchy despite good skin care can be an early nudge to check blood sugar control.[2] If you have diabetes, tell the doctor: recurrent candidal intertrigo is common when glucose runs high, treatment may need to run longer, and a fold that is breaking down or spreading warrants closer, sometimes in-person, attention. Managing the diabetes alongside the skin is often what finally settles it.
Intertrigo in babies, older adults and warm climates
The same physics of warmth and moisture explains why intertrigo clusters in particular situations, and each shifts the advice slightly. In babies it appears in the neck creases, groin and nappy area, where drooling, milk and a damp nappy keep the skin wet; frequent changes, careful drying and a barrier layer are the mainstays, and a bright-red nappy rash with satellite spots often means candida that needs an antifungal.
In older or less mobile adults, folds under the breasts, the abdominal apron and the buttock cleft are common sites, and pressure, incontinence and difficulty reaching the area all make thorough drying harder; a carer’s help and absorbent barriers matter as much as any cream. For expats and travellers, hot and humid climates make fold rashes flare within days, and a photo consultation means a sore, spreading fold can be assessed and treated wherever you are, with any prescription usable at a pharmacy near you, rather than searching for a clinic mid-trip.
Which intertrigo treatment might the doctor recommend?
Treatment pairs fold care with whatever infection is present. This is the framework the doctors use, aligned with the cited guidance:[2]
Swipe sideways to compare →
| Presentation | Likely first step | Suitable for online care? | When referral or in-person care is needed |
|---|---|---|---|
| Red, sore fold with no clear infection (friction and moisture) | Barrier and moisture control; a short course of mild topical steroid if it is very inflamed | Usually yes | Not settling with fold care, or an infection then develops |
| Candidal overlay (beefy-red with satellite spots) | Topical antifungal such as clotrimazole, alongside fold care | Usually yes | Extensive or recurrent disease, or poorly controlled diabetes |
| Bacterial overlay, or erythrasma | Topical antiseptic or antibiotic; erythrasma is treated specifically | Usually yes | Spreading redness, pus, or feeling unwell |
| Likely inverse psoriasis or a dermatophyte instead | Confirm the diagnosis, then treat accordingly | Usually yes for assessment | Diagnostic uncertainty that needs an in-person swab or scraping |
| Cellulitis, ulceration, or feeling unwell with fever | Prompt in-person assessment | No | Always; a deeper infection needs examination |
Not sure if your fold rash is infected? A doctor can tell you in one consultation.
See available times →Treatment options for intertrigo
What you can do yourself
Fold care does much of the work. Wash gently with water or a mild cleanser, then dry the fold thoroughly, patting rather than rubbing, and let air reach it when you can. Reduce friction and trapped moisture with loose, breathable clothing, a soft absorbent layer or a barrier cream in the crease, and by keeping cool in hot weather. Where excess weight or heavy sweating drives the rash, tackling those helps more than any single cream. These steps prevent recurrence as much as they treat the current flare.
Prescription treatment after your consultation
A prescription is never issued without a consultation. After assessment, a candidal overlay is usually treated with a topical antifungal, a bacterial overlay with a topical antiseptic or antibiotic, and erythrasma with its own specific treatment.[2] A short course of a mild topical steroid can calm marked inflammation, but potent steroids are avoided in folds, and a steroid alone should never be used on an untreated fungal or bacterial infection, because it lets the organism spread. Antibiotics are reserved for genuine bacterial infection rather than used by default. Any prescription can be used at a pharmacy near you.
When intertrigo is treated online, and when you need in-person care
Treated online: irritant intertrigo needing fold care and a short anti-inflammatory course; candidal, bacterial and erythrasma overlays that suit topical treatment; recurrent fold rashes where the plan needs revisiting; and diabetes-associated candidal intertrigo that is not breaking down, treated alongside advice to review glucose control.
In-person care: a fold that is ulcerating or breaking down; cellulitis or a deeper infection with spreading redness, swelling and fever; a rash that is not clearing despite correct treatment, where a swab or skin scraping in person settles the diagnosis; and worsening fold disease in poorly controlled diabetes or a weakened immune system. Intertrigo is one of many skin conditions the doctors assess online, and the same photo process helps separate it from look-alikes such as inverse psoriasis or a dermatophyte infection.
When to get in-person care
See a doctor in person promptly if the redness is spreading beyond the fold, the skin is hot, swollen and increasingly painful, an ulcer or open sore is forming, or you feel feverish and unwell. These can signal cellulitis or a deeper infection. If you develop a high fever with confusion, a rapidly spreading rash, or difficulty breathing, call 112 immediately.
How Mobi Doctor works
- Book a time that suits you: open daily 7am–11pm CET. You can see a doctor over video, usually within 15 minutes. No subscription, exact price up front.
- Upload your skin photos, then speak to a licensed doctor: a private video call: you describe what you feel, the doctor asks what matters, and you agree the right plan together.
- Get your fold-care plan: everything agreed before you hang up: your plan, and a prescription to use at a pharmacy near you where medication is clinically right for you. If your doctor decides you need to be seen in person, you get a full refund.
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Frequently asked questions about intertrigo
What is intertrigo?
Intertrigo is a rash in the folds of the skin, where two surfaces rub together and trap heat and sweat: under the breasts, in the groin, armpits, belly folds, between the buttocks and between the toes. It starts as red, sore inflammation from friction and moisture, and is often complicated by a yeast or bacterial infection that makes the intertrigo weep, smell or crack.
What causes intertrigo?
Intertrigo is caused by skin rubbing on skin in a warm, damp, airless fold, which breaks the surface and lets sweat, urine or stool irritate it; the yeast Candida and bacteria then settle on the damaged skin. Obesity, diabetes, heavy sweating, humid weather, tight or synthetic clothing, incontinence, immobility, a weakened immune system and recent antibiotics all make intertrigo more likely.
What does intertrigo look like?
Intertrigo looks like a red or red-brown patch that mirrors itself on both sides of a fold, often shiny, sore, itchy or burning, sometimes weeping, cracked or smelly in the deepest part. Small red spots or pustules scattered beyond the main patch suggest Candida; a dry, brown, finely wrinkled patch suggests the bacterial form erythrasma; and honey crusts suggest a bacterial infection on top.
Is intertrigo a fungal infection?
Not by itself. Intertrigo is inflammation from friction, moisture and heat in a skin fold; because that warm, damp skin is easily colonised, a fungal infection with Candida, or a bacterial one, often settles on top, and that is what most people with intertrigo are treating. Treatment addresses both the fold environment and whatever has infected it.
Can an online doctor prescribe treatment for intertrigo in Europe?
Yes, after a consultation. A prescription is never issued without one: the doctor reviews your photos and history by video first, then prescribes an antifungal, antiseptic or short anti-inflammatory treatment for intertrigo when it fits. Any prescription can be used at a pharmacy near you, and a fold that is ulcerating or spreading with fever is sent to in-person care.
What is the best cream for sore skin folds?
There is no single best cream for intertrigo, because it depends on what has settled in the fold: an antifungal cream for Candida, an antibacterial cream or antibiotic for bacterial infection, a brief mild steroid combined with an antifungal for very inflamed skin, and a zinc or silicone barrier cream to protect healing skin. A steroid cream alone makes infected intertrigo worse.
How long does intertrigo take to heal?
Simple intertrigo improves within a few days once the fold is kept dry and separated, and settles in one to two weeks. Infected intertrigo needs the antifungal or antibacterial cream for two to four weeks, continued for about a week after the skin looks normal, because yeast lingers. Intertrigo still raw after four weeks of proper care needs a review for diabetes, psoriasis or another cause.
Why do I keep getting intertrigo under my skin folds?
Intertrigo keeps coming back because the fold stays warm and moist: sweating, humid weather, tight clothing, excess weight, immobility and incontinence all trap moisture and friction, so the rash returns as soon as treatment stops. Keeping the fold cool, dry and separated, treating any yeast fully, and checking for diabetes are what finally break the cycle of recurrent intertrigo.
Does diabetes make intertrigo more likely?
Yes. Higher glucose levels favour yeast growth, so Candida intertrigo is more common and more persistent in diabetes, particularly when control is poor. Tell the doctor if you are diabetic; treatment of intertrigo may run longer, and a stubborn or repeatedly returning fold rash in someone without a diagnosis is a reason to test blood sugar.
What can I do at home to treat and prevent intertrigo?
Wash the fold gently once a day, rinse off all soap, pat dry or dry with a cool hairdryer, let air reach it when you can, and apply a thin barrier cream. Wear loose, breathable cotton, change sweaty clothes promptly, place a soft absorbent cloth or moisture-wicking liner in deep folds, stay cool in hot weather, manage weight and blood sugar, and avoid talc and thick ointments that trap moisture in the fold.
Is it intertrigo, ringworm, psoriasis or eczema?
Intertrigo mirrors itself on both sides of a fold and is worst at the deepest point. Ringworm in the groin spreads outward with a raised scaly edge and a clearer centre. Flexural psoriasis makes smooth, shiny, sharply defined red plaques, often with psoriasis elsewhere. Eczema is drier, itchier and scaly rather than moist. Photos usually separate them, and each needs a different cream.
Is intertrigo different in pregnancy, in older people or in babies?
In pregnancy, intertrigo is common under the breasts and belly because of sweating and weight gain, and is treated with pregnancy-safe antifungal and barrier creams. In older or immobile people, deep folds, incontinence and thin skin make intertrigo frequent and slow to heal, so daily skin checks matter. In babies it appears in the nappy area and neck folds and is treated by a local doctor in person.
- Intertrigo, DermNet New Zealand Trust, reviewed 2023.
- Candida - skin: Clinical Knowledge Summary, NICE Clinical Knowledge Summaries, revised 2022.
- Fungal skin infection (body and groin): Clinical Knowledge Summary, NICE Clinical Knowledge Summaries, revised 2023.
- Topical antifungal treatments for tinea cruris and tinea corporis, Cochrane Database of Systematic Reviews, 2014.
- Erythrasma, DermNet New Zealand Trust, accessed August 2026.
- Intertrigo and secondary skin infections, Kalra MG, Higgins KE, Kinney BS. American Family Physician, 2014; 89(7): 569–573.
This page is for information only and is not a substitute for a medical consultation. Guideline links are provided for transparency; treatment decisions are made with your doctor.
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