Allergic red rash on the back of the hand can choose daily care, with oral medication, topical medication, etc. to carry out treatment. 1. Daily care: allergy rash on the back of the hand should be away from allergens, and avoid scratching the skin lesions with both hands, and do a good job of skin lesion care. 2. Oral medication: patients can follow the doctor’s instructions to take antihistamines to alleviate the symptoms, such as cetirizine hydrochloride tablets, loratadine, etc., to alleviate the itching caused by the back of the hand allergy rash, serious cases can be short-term use of small doses of glucocorticoids, such as prednisone and so on. 3. Topical medication: hydrocortisone ointment and dianabed cream can be used externally as prescribed by the doctor to relieve the itching and rash symptoms caused by inflammation. The red rash on the back of the hand allergies, patients are recommended to seek medical treatment. The above drugs should be used under the guidance of a doctor, and should not be used indiscriminately, so as not to lead to adverse consequences.