Mosquito bites the bag has not been receding with the failure to timely treatment, low immunity, etc., you can use medication, general treatment and other methods. 1. Drugs: mosquito bites the bag has not been receding, can be considered mosquito bites the skin secretion of some substances, resulting in skin allergic reaction, causing redness and swelling for a long time. You can use glycerine lotion, hydrocortisone butyrate cream and other drugs for treatment. 2. General treatment: due to low immunity caused by mosquito bite bags have not been receding, you can adhere to daily moderate exercise, such as running, etc., to enhance their own resistance, which will help the rash subside. In addition, avoid scratching, friction and other stimuli. When the mosquito bites do not go away, you can also go to the dermatology department of the regular hospital first. Medications need to be used in accordance with medical advice.