A particularly itchy bite from a small insect may be insect bite dermatitis, also known as papular urticaria. It is recommended that timely detachment from the environment, the use of topical medications and oral medications under the guidance of a doctor can help alleviate the symptoms. 1. Get out of the environment: frequent trips to parks, jungles and other environments are prone to mosquito bites, resulting in the appearance of localized wind, erythema and papules, which may cause significant itching. It is recommended to get out of the environment in a timely manner, and do a good job of insecticide treatment. 2. Topical medications: mosquito bites lead to localized swelling, itching, it is recommended that under the guidance of a doctor to give the compound fluoxetine ointment, dinexidine ointment, etc., anti-inflammatory, anti-itching, anti-allergic effect. Glycerite lotion can also be given, with anti-itching, astringent effect. Local secondary infection caused by scratching, can be used topical antibiotic drugs, such as mupirocin ointment and other anti-infective treatment. 3. Oral medication: for patients with significant itching, antihistamines can be given, such as loratadine, cetirizine, etc., with anti-allergic, anti-itching effect. Exposed parts of the skin by small insect bites, skin damage, itching, it is recommended to promptly go to the hospital dermatology department, follow the doctor’s instructions for medication, can shorten the course of the disease.