What causes a recurrent itchy rash on the palms that spreads?

Question

Hello doctor,

I have a red rash that is very itchy, tender to the touch, and firm. It started on my palms, then appeared on my lower belly, and is now spreading to other parts of the body, including skin folds, wrists, and fingers, but not on my face, mouth, or neck. The rash spreads quickly if I scratch it. I do not have a fever.

This happened to me one month ago, and I saw a dermatologist who diagnosed it as a viral exanthem, which cleared in about 10 days. Now it has reoccurred, so I am concerned.

Could it really be the same, or might the diagnosis have been wrong?

Please help.

Thank you.

Answer 1

Hello,

Welcome to icliniq.com.

I read your query.

Based on your description of a very itchy red rash that started on the palms and spread to the lower abdomen, wrists, fingers, and skin folds, with lesions multiplying quickly after scratching, several possibilities exist.

While viral exanthem can cause widespread rashes that resolve in seven to ten days, it usually comes with fever, fatigue, sore throat, or other viral symptoms. Recurrence within a month without these symptoms is less typical.

Another possibility is scabies, which causes intense itching, especially at night, and affects the finger webs, wrists, palms, abdomen, and skin folds. Scratching can make lesions appear to multiply. Recurrence can happen if treatment is incomplete or contacts are untreated.

Contact dermatitis (a skin reaction that happens when your skin touches something irritating or allergenic) is also possible if new soaps, detergents, cosmetics, perfumes, or clothing materials are causing an allergic reaction. Itching and rashes may return on repeated exposure.

Urticaria (hives) can cause rapidly appearing itchy bumps that increase after scratching, but these are usually soft and temporary, unlike firm lesions.

To help narrow down the cause, could you provide more information:

When is the itching worst: night or day?
Are there small bumps, blisters, or thin lines on finger webs, wrists, or palms?
Does anyone in your household or close contacts have similar rashes or itching?
Do the lesions stay in one place for days or appear and disappear quickly?
Any recent infections, medications, vaccinations, or new products that came into contact with the skin?
Do the lesions look scaly, crusted, or fluid-filled?

If possible, please upload clear photographs of the affected areas, including the palms, finger webs, and wrists, lower abdomen, and any rash in the skin folds.

Good quality photos in natural light and close-up will help assess the pattern and appearance of the rash more accurately, allowing a more precise opinion and guidance.

I hope this helps.

Kindly revert so I can assist you further.

Thank you.