After being bitten by mosquitoes, there will be localized red blood spots, which is a common symptom, you can choose to temporarily observe, smear Zihuadidin, oral antihistamine treatment. 1. Temporary observation: after being bitten by mosquitoes, most people will have localized red blood spots, if not accompanied by other symptoms, you can choose to temporarily observe, do not deal with, and avoid going to places where there are more mosquitoes. 2. Smear Zihuadidin: After being bitten by mosquitoes, there may be local itching symptoms, patients can be coated with Zihuadidin ointment, glycerine lotion, so as to achieve the role of cooling and itching. 3. Oral antihistamines: if the patient after being mosquito bites, may cause insect bite dermatitis, accompanied by intense itching symptoms, can be oral loratadine, cetirizine and other antacids, so as to improve the patient’s symptoms. It is recommended that patients who have red blood spots after being bitten by mosquitoes can be treated and treated according to their own situation and with the doctor to give the corresponding treatment, do not blindly use drugs.