Baby’s face is swollen after being bitten by mosquitoes, consider the mosquito bite caused by allergic reactions, at this time if accompanied by pain, fever, but also need to pay attention to whether the combination of infection. If there is no co-infection, local saline or boric acid solution can be given wet compresses, while oral antihistamines, children over one week old can be given oral dexloratadine suspension, children over two weeks old can be given oral loratadine syrup or cetirizine syrup. If infection is present, there will be pain and surface burning discomfort, and a wet compress of Ravnol solution or furacilin solution will be given. If there is an increase in body temperature, antibiotic treatment is needed. It is recommended to avoid contact with water to avoid aggravation of the infection.