Erythema on the hands may be caused by eczema, tinea cruris, atopic dermatitis, which can be eliminated by using glucocorticosteroids (e.g. hydrocortisone butyrate cream), antifungal drugs (e.g. terbinafine cream), antihistamines (e.g. loratadine) and other drugs. 1. Eczema: it is an inflammatory reaction of the skin caused by a variety of internal and external factors, which can lead to erythema on the hands, usually itching intensely, and can be followed by the use of glycerite lotion external washing, applying glucocorticoid preparations such as hydrocortisone butyrate cream, dinexidine cream and so on. 2. Ringworm: mainly due to dermatophyte infection, can be treated with topical antifungal drugs, such as ketoconazole ointment, terbinafine cream, etc.; topical antipruritic drugs, such as zinc oxide lotion, glycerine lotion, etc.; if necessary, can be taken orally antifungal drugs, such as itraconazole, fluconazole and so on. 3. Allergic dermatitis: contact with certain allergens such as pollen, animal fur, etc., can cause skin allergic reactions, resulting in erythema, can be localized topical glucocorticosteroid drugs such as mometasone furoate cream, with oral antihistamines such as chlortetracycline, as well as calcium, vitamin C and so on. Erythema on the hands may have other reasons, it is recommended to go to the hospital in a timely manner, to clarify the cause, and follow the doctor’s instructions to standardize the treatment.