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Dr. Chrysoula I. Liakou MD, PhD
- Treated online: Yes, usually. Photo and video assessment, prescription when appropriate.
- An itchy scalp usually has a treatable cause: dandruff and seborrhoeic dermatitis, scalp psoriasis, head lice or a fungal infection, most of which are recognisable from clear parting photographs.
- Dandruff is linked to a normal skin yeast, not poor hygiene, and often flares with stress and in winter.
- Scalp ringworm, mainly in children, needs in-person testing and oral antifungal treatment; shampoos alone do not clear it.
- Treatment follows the cause: antifungal shampoos for dandruff, steroid preparations for psoriasis, insecticides for lice.
Online care suits most itchy scalps: dandruff, seborrhoeic dermatitis, scalp psoriasis and head lice. A child with scaly, patchy hair loss, a boggy tender scalp swelling, or scarring and permanent hair loss needs in-person care, because these need testing or specialist treatment. See the referral criteria below before booking.
Can an online doctor help with an itchy scalp?
Often, yes. An itchy scalp usually comes from a visible cause, most often dandruff or seborrhoeic dermatitis, scalp psoriasis, or head lice, and clear parting photographs plus a video call can usually tell these apart and guide treatment.[1] Scalp ringworm in children, scarring hair loss and a boggy tender swelling are the exceptions that need in-person testing or specialist care.
Listen: Itchy Scalp Treatment Online
The audio version of this topic from the Mobi Doctor podcast. Open the episode.
How an online consultation helps with an itchy scalp
? Take parting shots: part the hair in three or four places, including the crown and hairline, and photograph the scalp skin in daylight, not just the hair. Add one close-up of the flakiest or reddest patch, and a shot near the roots if you suspect lice, so eggs on the shafts are visible. Our guide, how to photograph a skin problem for an online doctor, shows how to get the scalp in focus.
? Take parting shots: part the hair in three or four places, including the crown and hairline, and photograph the scalp skin in daylight, not just the hair. Add one close-up of the flakiest or reddest patch, and a shot near the roots if you suspect lice, so eggs on the shafts are visible. Our guide, how to photograph a skin problem for an online doctor, shows how to get the scalp in focus.
parting the hair in a few places shows the scalp skin itself, and the pattern of scale, redness or eggs on the hair shafts is usually enough to point to the cause.
greasy yellow flakes, thick silvery plaques and nits glued to hairs each mean something different, and mixing them up means months of the wrong shampoo.
an antifungal shampoo, a scalp steroid lotion, a psoriasis preparation and a lice treatment are not interchangeable, and the doctor matches treatment to the diagnosis.
patchy hair loss with broken hairs, a tender boggy swelling or any scarring is flagged for in-person care rather than treated blindly online.
What the doctor checks in an online itchy scalp consultation
The assessment is structured around separating the common, treatable causes from the few that need in-person testing. In an itchy scalp consultation, the doctor will typically assess:
- The type of scale: greasy, yellowish flakes on red skin suggest seborrhoeic dermatitis, while thick, silvery, sharply edged scale suggests scalp psoriasis.[3]
- Where it reaches: psoriasis often extends just past the hairline onto the forehead, behind the ears or on the neck, which helps distinguish it from dandruff.
- Eggs and lice: small eggs (nits) firmly glued near the hair shaft, and live lice, point to an infestation rather than a skin condition.[4]
- Hair changes: broken hairs, scaly bald patches or a tender, boggy swelling suggest a fungal scalp infection or something that needs urgent in-person care.
- Other affected skin: the face and chest for seborrhoeic dermatitis, the elbows, knees and nails for psoriasis, which strengthen the diagnosis.
- Triggers and products: new dyes, styling products or a change of shampoo that could point to contact dermatitis.
- Impact: how much the itch disturbs sleep and daily life, and whether scratching has broken the skin and risked infection.
What causes an itchy scalp?
An itchy scalp is a symptom, not a diagnosis, and the treatment depends entirely on the cause. A handful of conditions account for most cases, and each has a recognisable pattern.
Dandruff and seborrhoeic dermatitis
This is by far the commonest cause: fine white or greasy yellow flakes, often with mild redness, on the scalp and sometimes the eyebrows, sides of the nose and chest. It is linked to a normal skin yeast, Malassezia, and tends to come and go, worse with stress and in winter.[1] Dandruff is the mild end; seborrhoeic dermatitis is the same process with more inflammation. It is not caused by poor hygiene, and it responds well to antifungal and anti-inflammatory shampoos.
Scalp psoriasis
Psoriasis on the scalp forms thicker, well-defined plaques with a silvery scale that can feel bumpy under the fingers, often reaching just beyond the hairline. It can be very itchy and may shed larger flakes than dandruff.[3] Many people also have psoriasis elsewhere, so the doctor asks about the elbows, knees and nails. It is treatable but tends to be more persistent than dandruff and sometimes needs stronger scalp preparations.
Head lice, scalp ringworm and other causes
Head lice cause an itch from the bites, with eggs cemented to hairs near the scalp and, sometimes, visible live lice; it spreads by head-to-head contact and is treated with a lotion or systematic wet combing.[4] Scalp ringworm (tinea capitis), mainly in children, causes scaly patches, broken hairs and hair loss, and needs oral antifungals with in-person testing first, so it is closer to ringworm elsewhere on the body than to dandruff.[5] Less commonly, atopic eczema, a contact reaction to hair products or dyes, or simple dry skin can be behind the itch, which the history usually reveals.
Keeping an itchy scalp settled
Most itchy scalps are recurrent rather than one-off, so prevention is part of the treatment. For dandruff and seborrhoeic dermatitis, using a medicated shampoo regularly, rather than only during a flare, keeps the yeast in check, and many people settle into a maintenance routine of once or twice a week once the scalp is calm. Stress, cold dry weather and heavy, occlusive styling products tend to trigger flares, so noticing your own pattern helps.
For scalp psoriasis, gentle removal of thick scale with a softening preparation lets treatment reach the skin, and avoiding harsh scratching or picking prevents both breakage and the risk of infection. If head lice keep returning, the usual reason is an untreated close contact, so checking and treating the household together, and repeating combing after the recommended interval to catch newly hatched lice, is what finally clears them. Where an itch keeps coming back despite the right routine, a review lets the doctor adjust the plan rather than leave you cycling through shampoos.
Which itchy scalp treatment might the doctor recommend?
Treatment follows the cause, so getting the diagnosis right is the whole point. This is the framework our doctors use, aligned with the cited guidance:[2]
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| Presentation | Likely first step | Suitable for online care? | When referral or in-person care is needed |
|---|---|---|---|
| Greasy yellow flakes, mild redness (dandruff or seborrhoeic dermatitis) | Antifungal shampoo (for example ketoconazole); a short scalp steroid lotion if inflamed | Usually yes | Not responding, or very widespread and inflamed |
| Thick silvery plaques past the hairline (scalp psoriasis) | Coal tar or salicylic acid preparations, a scalp steroid or vitamin D analogue | Usually yes | Extensive or resistant disease needing specialist input |
| Intense itch with eggs or live lice on the hairs (head lice) | Dimeticone lotion or thorough wet combing; check and treat close contacts | Usually yes | Persistent despite correct, repeated treatment |
| Scaly patches with broken hairs or bald spots, especially in a child (scalp ringworm) | In-person testing, then oral antifungal treatment | No: assessment and referral only | Always; shampoos and creams alone do not clear it |
| Scarring, pustules, or a boggy tender swelling | Prompt in-person dermatology assessment | No | Always; risk of permanent hair loss |
Availability of individual medicines and who may prescribe them vary by country; your doctor confirms what applies where you are.
Not sure what is causing the itch? A doctor can tell you in one consultation. €47, exact price shown before payment.
See available times →Treatment options for an itchy scalp
What you can do yourself
For flaky, itchy scalps that look like dandruff, medicated shampoos containing ketoconazole, selenium sulfide, zinc pyrithione or coal tar help most people, used regularly and left on for a few minutes before rinsing.[2] Try not to scratch, because broken scalp skin can become infected, and patch-test any new hair dye before using it. If you suspect head lice, wet combing with conditioner every few days, or a dimeticone lotion, clears most cases, and checking household members at the same time stops it bouncing back. Give any shampoo a few weeks before deciding it has failed.
Prescription treatment after your consultation
A prescription is never issued without a consultation. After assessment, the doctor can prescribe a stronger antifungal shampoo or a scalp steroid lotion or foam for seborrhoeic dermatitis, and coal tar, salicylic acid, a scalp steroid or a vitamin D analogue for scalp psoriasis.[3] Head lice are treated with a lotion where combing alone has not worked. Oral antifungals for scalp ringworm are started only after in-person confirmation, and who may prescribe them and whether testing comes first vary by country.[5] Prescriptions can be sent to a pharmacy near you in most EU countries, and your doctor confirms what applies where you are.
When we treat an itchy scalp online, and when we refer you
We treat online: dandruff and seborrhoeic dermatitis; scalp psoriasis suited to topical scalp treatment; head lice, including advice for the whole household; contact reactions to hair products; and reviews when a first shampoo or lotion has not settled the itch.
We refer or redirect you: a child with scaly, patchy hair loss and broken hairs, where scalp ringworm needs in-person testing before oral treatment; a boggy, tender, oozing scalp swelling, the same day; any scarring hair loss or persistent pustules, which need specialist dermatology; and an itchy scalp with a spreading, infected, weeping rash. Itchy scalp is one of many skin conditions our doctors assess online, and the same photo process helps separate a flaky scalp rash from a fungal infection or psoriasis.
When to get in-person care
An itchy scalp is rarely urgent, but see a doctor in person for a tender, boggy scalp swelling, spreading infection with fever, or scarring and permanent hair loss. If you develop signs of a serious allergic reaction to a hair product or medicine, such as swelling of the face, lips or throat, a widespread rash or difficulty breathing, call 112 immediately.
How Mobi Doctor works
- Book a time that suits you: open daily 7am–11pm, often the same day, with the exact price, €47, shown before you pay.
- Upload your scalp photos, then speak to a licensed doctor: a private video consultation, from anywhere in Europe.
- Get your plan: if treatment is right for you, the prescription follows the consultation. If we can’t help you online, you get a full refund.
Frequently asked questions about an itchy scalp
Can an online doctor prescribe treatment for an itchy scalp in Europe?
Yes, after a consultation. A prescription is never issued without one: the doctor reviews your scalp photos and history by video first, then prescribes a medicated shampoo, scalp lotion or other treatment when it fits. Prescriptions can be sent to a pharmacy near you in most EU countries, and your doctor confirms what applies in your country.
How much does an itchy scalp consultation cost?
A video consultation costs €47. The exact price is shown before payment, and there is no subscription. If the doctor can’t treat you online, you get a full refund and clear directions to the right care.
How quickly can I speak to a doctor?
Appointments are available daily from 7am to 11pm, often the same day. You choose a slot that suits you and upload clear parting photos of your scalp beforehand, so the doctor can assess the cause and, if treatment is needed, arrange a prescription in the same consultation.
Is my itchy scalp dandruff or psoriasis?
They can look similar, but there are clues. Dandruff and seborrhoeic dermatitis give fine or greasy flakes with mild redness, while scalp psoriasis forms thicker, silvery, well-defined plaques that often reach past the hairline and may come with psoriasis on the elbows, knees or nails. Clear photos usually let the doctor tell them apart.
Can you tell if it is head lice from a photo?
Often, yes, if the photo shows eggs cemented near the hair shafts or a live louse. Because lice move and eggs are small, a close-up near the roots helps, and the doctor may ask you to wet-comb onto white paper during the call. If it is lice, treatment and simple household advice usually clear it.
Why is my scalp so itchy at night?
Itch often feels worse in the evening because there are fewer distractions and the skin is warmer, and scratching then disturbs sleep. Treating the underlying cause, whether dandruff, psoriasis or lice, is what settles it. In the meantime, avoid hot water and heavy scratching, which inflame the scalp further.
When does an itchy scalp need to be seen in person?
When there is scaly, patchy hair loss with broken hairs, a tender boggy swelling, scarring, or a spreading infected rash with fever. Scalp ringworm in particular needs in-person testing before oral treatment. The doctor will tell you clearly if your scalp falls into one of these groups.
- Seborrhoeic dermatitis, DermNet New Zealand Trust, reviewed 2023.
- Seborrhoeic dermatitis: Clinical Knowledge Summary, NICE Clinical Knowledge Summaries, revised 2022.
- Scalp psoriasis, DermNet New Zealand Trust, reviewed 2023.
- Head lice: Clinical Knowledge Summary, NICE Clinical Knowledge Summaries, revised 2023.
- Tinea capitis (scalp ringworm), DermNet New Zealand Trust, accessed August 2026.
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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