Swelling of the mouth after being bitten by mosquitoes can be reduced by anti-inflammatory, anti-infectious and anti-allergic treatment with medication. Swelling after mosquito bites can be treated with topical glucocorticoid creams such as hydrocortisone cream for anti-inflammatory treatment, and oral antihistamines such as cetirizine and loratadine for anti-allergy treatment. If the lesions are extensive and the symptoms are severe, short-term oral glucocorticoid treatment is also needed. If the mosquito bite local complication of bacterial infection, can be used externally antibiotics such as erythromycin ointment for anti-infection treatment. After the mouth is swollen by mosquito bites, you should seek medical treatment in time, not unauthorized medication, so as not to delay the condition.