If the itchy skin is caused by physiological factors such as dry skin, ointments are usually not needed. If the itchy skin is caused by insect bite dermatitis, eczema and other diseases, it should be treated with topical hydrocortisone, dexamethasone and other ointments. If it is diabetes and other diseases caused by itchy skin, you can use topical glycerine lotion to relieve, while following the doctor’s instructions to take hypoglycemic drugs treatment. 1. Physiological factors: If the skin is dry and other physiological factors caused by itchy skin, generally do not need to use ointment, strengthen the moisturizing can be. 2. Insect bite dermatitis: If the itchy skin is caused by insect bites, it is recommended that patients apply hydrocortisone, mometasone furoate and other glucocorticoid drugs under the guidance of a doctor to help relieve the itch. 3. Eczema: Eczema may cause itchy skin, patients are advised to apply glucocorticoid drugs such as dexamethasone and halometasone after consulting with a doctor, which can help reduce inflammation and relieve itching. 4. Diabetes: itchy skin can also be caused by diabetes, can be prescribed topical glycerite lotion, play the effect of itching. Simply external itching medicine can only relieve the symptoms, patients also need to follow the doctor’s prescription oral glibenclamide, gliclazide and other hypoglycemic drugs, blood sugar control. There are many causes of itchy skin, after excluding physiological factors, it is recommended that patients seek medical examination to clarify the cause of the disease, and use medication under the guidance of the doctor, do not take medication without authorization.