Mosquito bites are red, swollen and hard with small blisters considered to be insect bite dermatitis, a skin allergic reaction, which requires general treatment, medication and personal care and other methods of treatment. 1. General treatment: usually choose to wash the bites, keep local cleanliness and hygiene, and prohibit scratching with hands to avoid inducing infection. 2. Medication: You can apply anti-inflammatory and anti-allergy ointment, such as Dinaid cream, halometasone cream, etc., to reduce the local redness, swelling, itching and other symptoms, and if necessary, you can choose to take anti-allergy drugs under the guidance of the doctor, such as loratadine tablets, cetirizine tablets, etc., to alleviate the symptoms of local allergy. 3. Personal care: you need to keep the surrounding environment clean and hygienic, and regularly spray insecticidal sprays to avoid mosquito breeding. If the symptoms are not relieved, or accompanied by other symptoms, you should go to the hospital in a timely manner, after the cause is clear, under the guidance of the doctor to choose targeted treatment. All of the above medications should be used under the guidance of a doctor to avoid self-medication.