Itchy rash is a group of inflammatory skin diseases characterized by windswept papules, nodules, and strange itching. It can be treated with topical application and systemic medication. 1. Local medication: glucocorticosteroids such as mometasone furoate cream, calcium-modulated phosphatase inhibitor such as pimecrolimus ointment, nodular lesions can be used glucocorticosteroids intradermal injection. If scratching bleeding ulcerated infection, can also use fusidic acid cream. 2. Systemic medication: oral antihistamines such as loratadine, extensive lesions and itching intolerable, short-term systemic use of small doses of glucocorticosteroids such as prednisone, if necessary, can be in the lesions at the intravenous closure of procaine. The above drugs need to be used in accordance with medical advice, it is recommended that patients with itching diagnosis to the regular hospital in a timely manner, under the guidance of the doctor, avoid self-medication, so as not to aggravate the condition.