Fingers swollen and swollen by poisonous mosquito bites, consider the possibility of insect bite dermatitis, mainly due to mosquitoes in the bite of the toxin into the human blood caused by local skin allergic reactions, you can take medication and physical therapy. 1. Physical therapy: fingers swollen and swollen by poisonous mosquito bites, you can use local hot compresses, infrared local irradiation, etc., to promote blood circulation, relieve swelling and pain. 2. Medication: Glycolite lotion can be used externally to astringe and relieve itching, and glucocorticoid creams such as compound dexamethasone cream and trimethoprim cream can be used as appropriate according to the doctor’s instructions; antihistamine drugs such as loratadine and levocetirizine tablets should be taken orally to treat the condition; when the condition is serious, glucocorticosteroid drugs such as prednisone should be taken orally under the direction of a doctor to treat the condition. After being bitten by poisonous mosquitoes, you should avoid scratching to prevent the formation of diseases such as salpingitis. If salpingitis or cellulitis occurs, you should go to the regular hospital in time and apply penicillin and other sensitive antibiotics under the guidance of the doctor; when the cellulitis is localized to form an abscess, it is feasible to make an incision and drain it surgically. It is recommended that patients with swollen and distended fingers bitten by poisonous mosquitoes go to regular hospitals in a timely manner, and standardize the treatment under the guidance of doctors to avoid delays in the condition, or self-medication resulting in serious adverse reactions.