Eczema vs Psoriasis: Why the Diagnosis Matters
Understand why eczema and psoriasis can be confused, what to tell your clinician and why diagnosis matters before choosing a prescription cream.
eczema on feet
An itchy foot rash needs the right diagnosis
An itchy, peeling or blistering foot rash could be eczema, athlete’s foot or a reaction to your shoes. These can look alike but need different treatments. Have a new rash checked before trying a steroid cream, especially if the skin between your toes or the nails have changed.
Check the cause before choosing a cream
Eczema on feet can cause itching, dryness, cracks or blisters. Athlete’s foot and other conditions can cause similar changes, so symptoms alone do not reliably identify the cause. A first or unfamiliar rash should be assessed before you use a prescription steroid. If eczema has already been diagnosed, explain what is different about this flare when requesting a review.
A cream that helped an arm rash is not automatically the right treatment for your feet. Tell the pharmacist or GP where the problem started, whether one or both feet are affected and what you have already used. Mention pain, broken skin and changes to the toenails.
What eczema on feet can look and feel like
Pompholyx, also called dyshidrotic eczema, can cause very itchy small blisters on the toes and soles. The skin may become sore, dry and cracked as they settle. It can affect the hands too. The NHS pompholyx guide stresses that other conditions can look similar and advises against diagnosing it yourself.
Tell the clinician whether the blisters come and go, whether they get worse in particular shoes and whether you have eczema elsewhere. On brown or black skin, a rash may look darker or lighter than the surrounding skin rather than the bright red shown in many photos.
If the rash changes from one day to the next, a clear photo from an earlier flare can help. Also tell the clinician if the skin feels warm, hurts when you put your shoes on or makes walking painful. Those details are hard to judge from a picture.
Eczema or athlete’s foot?
Athlete’s foot is a fungal infection. It often affects the spaces between toes, but can also affect the soles or sides of the feet and sometimes cause blisters. That overlap is why “blisters mean eczema” and “dry skin means eczema” are unreliable shortcuts. Toenail changes may also be relevant.
| Change | What to tell the clinician |
|---|---|
| Itchy small blisters | Where they start, whether they recur and whether your hands are affected |
| Peeling or white skin between toes | Whether it is spreading and whether antifungal treatment has been tried |
| Dry scale on the sole or sides | How long it has lasted and whether one or both feet are involved |
| A rash where footwear touches | Which shoes, socks or new products seem linked |
| Increasing pain, heat or swelling | Seek prompt medical advice rather than a routine cream change |
The NHS athlete’s foot guide explains when pharmacy antifungal treatment may help and when a GP review is needed. A clinician may arrange a skin scraping to check for fungus when the diagnosis is uncertain or treatment has not worked. Do not use a steroid alone to test whether the rash is eczema.
Could footwear be contributing?
Shoes contain different materials, adhesives and finishes. Contact dermatitis can arise from irritation or allergy to something touching the foot. Heat, sweat and friction may make the problem more troublesome. A change of shoe style may help comfort, but it does not prove an allergy or identify the responsible ingredient.
According to DermNet’s shoe contact dermatitis guide, allergy can involve materials such as rubber, leather components or adhesives. Dermatology patch testing may be useful if a contact allergy is suspected. A shoe described as natural, leather or hypoallergenic is not a guarantee that every component will suit you.
For review, note which footwear you wear at work, during exercise and at home. Keep product details for new insoles, sprays or creams. If your job requires protective footwear, discuss suitable alternatives with your employer or occupational-health team instead of removing the protection yourself.
Looking after sore feet while seeking advice
Keep washing gentle and dry feet carefully, especially between the toes. Change damp socks and avoid footwear that leaves your feet unnecessarily hot and sweaty. Do not burst blisters or pick loose skin. If walking is painful, the skin is broken or symptoms are worsening, ask for medical advice.
- Use clean socks and let shoes dry between wears where practical.
- Do not share towels, socks or shoes while a fungal infection is possible.
- Tell the clinician about sports, long shifts and any footwear you must use.
- Keep a list of creams tried, how long you used them and what happened.
For diagnosed eczema, an emollient can help dry skin. Ask which preparation suits the affected area; wet or weeping skin may need a different approach. Be careful walking after application because products can make feet and floors slippery. Keep contaminated socks and bedding away from cigarettes and flames, as emollient residue increases fire risk.
If you use both an emollient and a prescribed skin medicine, ask how to space them. The NHS emollient advice recommends a 20 to 30 minute gap and checking which should go first. Avoid improvising wraps or airtight coverings to keep a steroid in place.
How confirmed foot eczema is treated
An eczema flare may need prescribed anti-inflammatory treatment alongside skin care. The choice depends on severity, the precise area and previous response. The thicker skin of a sole is different from a toe web, so there is no single foot-eczema cream that is right for every patch.
A prescriber may consider a prescription steroid such as betamethasone valerate or mometasone after checking the rash. These creams calm inflammation but do not treat a fungal infection. Do not borrow a tube or reuse one prescribed for a different patch. Ask where to apply it and how long to use it.
Tell the clinician if a cream settles the rash for a few days and it then comes back. They may need to check for a fungal infection or ask about the shoes and products that touch the area. Our discoid eczema guide describes one type of eczema that can leave round patches.
When to get medical help sooner
Seek prompt GP or NHS 111 advice for a hot, swollen or increasingly painful foot or leg, rapidly spreading skin changes, or feeling feverish or unwell. Blisters with pus or yellow-brown crusts also need assessment. Do not wait for an online eczema request to be reviewed if symptoms are rapidly worsening.
If you have diabetes, poor circulation or a weakened immune system, mention this when asking for help. Foot problems may need earlier examination and your usual foot-care team may need to be involved. New wounds or significant pain should not be managed by trying several creams at home.
Even without urgent symptoms, arrange a review if the rash is new, recurrent or not responding to the treatment recommended. Take the actual tube or a clear record of its name. Saying “a steroid” or “a fungal cream” may leave out the strength and ingredients that matter.
Your questions answered
Can athlete’s foot cause blisters too?
Yes. Fungal infection can sometimes cause blisters as well as peeling or scaling. A blistering rash is not enough to diagnose pompholyx. Ask a pharmacist or GP to assess an unfamiliar or persistent problem.
Should I stop wearing a particular pair of shoes?
If shoes clearly aggravate symptoms, discuss an alternative. Keep details of the materials and any insoles or sprays. Do not abandon required safety footwear without suitable replacement advice; suspected allergy may need investigation.
Can eczema on feet be treated online?
Adults with diagnosed eczema can request a treatment assessment. A new rash, possible fungal infection, broken skin or uncertain diagnosis may need examination first. Online assessment does not guarantee a prescription.
Request a review for diagnosed foot eczema
If you already have a foot eczema diagnosis, tell The Care Pharmacy which areas flare, which creams helped and whether a particular pair of shoes makes things worse. The prescriber may suggest treatment or ask you to have the skin examined. Ask a pharmacist or GP to check a new or unfamiliar foot rash first.
Clinical reviewer
Mohammed Ismail Lakhi MPharm
Superintendent Pharmacist at The Care Pharmacy
GPhC Registration Number: 2072815
The Care Pharmacy is led by Superintendent Pharmacist Mohammed Ismail Lakhi MPharm. The pharmacy assesses individual suitability before prescribing or supplying prescription treatment. Your own clinician can explain how general guidance applies to your health, medicines and treatment plan.
