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Rashes over penis and palms may occur with certain skin conditions like Psoriasis
, allergic dermatitis
, a STD
, also can produce rashes over penis and palms. But blisters are common over palms in an adult Syphilis. Application of Pola cream has only soothing effect, not a curative.
Consult a physician, he/she will help to proceed further by examination and investigations.
Get well soon.