Rash after mosquito bites can be treated with topical medications, oral medications, etc. It is recommended that patients follow the doctor’s instructions for medication. 1. Topical drugs: mosquito bites after the rash, patients can follow the doctor’s instructions to use glycerine lotion, in order to play the role of antipruritic. Can also be used locally compound phenylephrine cream, tretinoin cream, compound dexamethasone acetate and other drugs, in order to achieve anti-inflammatory, anti-allergic effect, so as to alleviate the symptoms of rashes, itching, tingling and so on. 2. Oral medication: for mosquito bites caused by redness, swelling, itching, rash and other symptoms of more serious patients, under the guidance of the doctor oral loratadine, cetirizine hydrochloride and other antihistamines. Rash after mosquito bites, patients should promptly go to the hospital dermatology department, not unauthorized use of drugs. At the same time, in daily life should pay attention to personal hygiene, do a good job of insect prevention measures.