Itchy skin may be caused by physiological factors such as dry weather, or it may be caused by atopic dermatitis, urticaria, diabetes and other diseases, which can be solved by general treatment and medication for the cause of the disease. 1. Physiological factors: itchy skin may be caused by dry weather, daily attention should be paid to moisturizing, you can apply some body lotion after bathing, to reduce water loss, to avoid dry skin caused by itching. 2. Atopic dermatitis: patients with atopic dermatitis can appear itchy skin, you can follow the doctor’s instructions for the external use of glucocorticoid drugs, such as dexamethasone, hydrocortisone cream, etc., and under the guidance of the doctor orally loratadine, imipramine and other antihistamine drugs. 3. Urticaria: If you want to solve the itchy skin caused by urticaria, you can take oral antihistamines under the guidance of a doctor, such as dicloxacortin, fexofenadine, etc., which can be anti-allergic, promote the receding of the rash, and alleviate the itchy skin symptoms. 4. Diabetes: itchy skin may also be caused by diabetes, you can take oral hypoglycemic drugs as prescribed by the doctor, such as metformin, nateglinide, etc., and if necessary, insulin injection, play the role of hypoglycemic, treatment of disease, so as to alleviate the symptoms of the disease. There are many causes of itchy skin, it is recommended that patients go to the hospital in a timely manner, to clarify the cause of the disease, standardized treatment under the guidance of the doctor.