The red spots that appear after mosquito bites are usually papular urticaria, and patients are advised to remove them through topical medications and oral medications under the guidance of a doctor. 1. Topical medication: patients can use topical glucocorticoid drugs to anti-inflammatory, desensitization under the guidance of a doctor, such as dianabed cream, mometasone furoate cream, hydrocortisone butyrate cream and so on. At the same time, in order to avoid secondary bacterial infection of the bite, the patient can also apply antibiotic drugs, such as fusidic acid cream, mupirocin cream and so on. 2. Oral medication: patients can take oral antihistamines to desensitize the treatment, such as levocetirizine hydrochloride, olopatadine hydrochloride and so on. When patients are bitten by mosquitoes appear red spots with physical discomfort, timely hospital consultation, under the guidance of professional doctors standardized treatment. Drugs need to be used in accordance with medical advice.