The hand is swollen by the insect bite can be local treatment, local medication, oral medication. 1. local treatment: you can use soapy water or flowing water to clean the local area, try to clean out the poisonous juice left by the insect bite, if there are bleeding symptoms can also be squeezed out of the liquid inside the hand, to reduce the inflammatory reaction. 2. Local medication: If there are symptoms of itching, you can use peppermint glycerite lotion to relieve, if the swelling is more serious, you can also choose glucocorticoid drugs, such as dexamethasone cream, trimethoprim cream and so on. 3. Oral medication: purely external drug treatment effect is not obvious can be oral antihistamine drugs, such as benadryl, cetirizine, can shorten the course of the disease, improve the efficacy. If the symptoms are particularly serious, glucocorticosteroids, such as methylprednisolone and prednisone, can also be used systematically. The severity of the same disease is different, the treatment method is different, you should follow the doctor’s instructions, to avoid delaying the disease.