Foot by mosquito bites after the blisters, is due to mosquito bites after the allergic reaction, blisters if not broken, you can give local glucocorticoid cream topical, such as compound beclomethasone camphor cream, anti-itch and reduce swelling are very good effect. If the blisters break down, the cream should not be used at this time, and can be applied topically with saline or boric acid solution for 1-2 days after the exudation is reduced and then the cream is given topically. At the same time, you can take antihistamine drugs orally, such as the second-generation antihistamine loratadine, cetirizine, etc., which can effectively control the aggravation of allergic reactions, and at the same time have the effect of antipruritic. If the wound surface is broken, pay attention to make sure not to contact water to avoid infection of the wound surface. If suppuration occurs, anti-infection treatment, such as topical povidone-iodine solution or fusidic acid cream, needs to be given in time to avoid aggravating the infection.