The appearance of dermatitis, painless and itchy is also a manifestation of the disease, belongs to the normal dermatitis of one of the clinical manifestations, need to clarify the specific cause of the symptomatic treatment, generally need to be treated with drugs. Dermatitis, may be caused by contact dermatitis, stasis dermatitis, atopic dermatitis, eczema, etc., may be only manifested as skin papules, papules, redness, blisters, etc., and does not necessarily have pain and itching. Symptomatic treatment with medications is usually required. Topical medications include various glucocorticosteroids such as dexamethasone and mometasone furoate, as well as calcineurin inhibitors such as tacrolimus ointment and pimecrolimus ointment. Systemic medications include antihistamines such as loratadine and cetirizine, and immunosuppressants such as cyclosporine and methotrexate. If dermatitis occurs, even if it doesn’t hurt or itch, you need to seek medical treatment as soon as possible. Do not use medication on your own to avoid serious complications.