Due to the complexity of the causes of itchy rash, there is a certain degree of difficulty in the treatment, usually through the treatment can be achieved after the improvement, but there is also the possibility of recurrence. Currently, the treatment methods include local topical drug therapy, systemic drug therapy, physical therapy and so on. 1. Local medication: patients can use medication with anti-itch function, such as glycerite lotion, various glucocorticoid preparations (such as mometasone furoate cream, etc.), camphor-containing preparations (such as ice camphor eucalyptus fluorescent relaxation ointment, etc.); 5% to 10% coal tar ointment, black bean distillate ointment and other ointments also have a good effect. 2. Systemic therapy: patients can choose more than two kinds of antihistamines (such as olopatadine hydrochloride tablets, epinastine hydrochloride tablets, etc.) combined treatment, supplemented with vitamin C, calcium and so on to improve the vascular permeability; for rash eruption, itching is intense, can also be used for intravenous closure of procaine (this method has side effects, need to comply with the instructions of the doctor to accept the treatment). For refractory or recurrent patients, short-term systematic use of glucocorticoids, such as prednisone (such drugs need to be used under the guidance of a doctor, as prescribed by a doctor); for the lesions hyperplasia obvious, hard texture of the patients, can be orally retinoic acid drugs (such as viamine ester, etc.); for the neuropsychiatric factors of the patients, can be given appropriate sedative-hypnotic drugs, inhibition of nerve excitation. 3. Physical therapy: patients can reduce itching through hydrotherapy, such as chaff bath, starch bath, sulfur bath, etc.; also through ultraviolet UVA or UVB local irradiation treatment of recalcitrant lesions. It is recommended that patients go to a regular hospital, after relevant examinations, to clarify the cause of the disease, under the guidance of a professional doctor to receive appropriate treatment.