For the skin rash symptoms, may and mosquito bites, eczema, urticaria and other factors related to the removal of triggers, topical drugs, oral medication and other methods for relief. 1. Mosquito bites: mosquito bites late secretions can stimulate extravascular inflammatory reaction, resulting in localized skin rash symptoms, can be applied by compound menthol ointment, glycerite lotion, Dinaid cream, etc., can play a cool, anti-itching, anti-allergic effect. 2. Eczema: the skin rash condition may also be related to eczema factors, through the external use of glycerite lotion and hydrocortisone, mometasone furoate and other glucocorticosteroid drugs, to achieve anti-inflammatory and anti-itching effect. 3. Urticaria: mostly caused by contact with allergenic substances, there will be skin rashes and itching phenomenon, can be used externally with glycerine lotion, oral loratadine, cetirizine and other antihistamine medication, in order to alleviate the discomfort of the symptoms. There may be other reasons for skin rashes, so patients are advised to go to the hospital to clarify the cause and follow the doctor’s instructions for standardized treatment.