Swollen hands after being bitten by mosquitoes are mostly considered to be insect bite dermatitis, insect bite dermatitis patients with swollen hands should take general treatment, medication and other ways of treatment. 1. General treatment: If the insect bite dermatitis patients have swollen hands, you should use soap and water to wash the mosquito bite area. At the same time, avoid scratching the affected area, so as not to cause secondary infection. 2. medication: patients can apply glucocorticoid creams, such as betamethasone cream, mometasone furoate cream, etc., with anti-itching, anti-inflammatory effect. For patients with intolerable itching, they can take oral antihistamines, such as loratadine, benadryl, etc., to relieve itching. For patients with insect bite dermatitis, it is recommended to go to the hospital under the guidance of the doctor to choose the appropriate treatment. Medications should be used as prescribed by the doctor.