After being bitten by mosquitoes the whole leg is swollen, in the treatment includes strengthening care, local medication as well as systemic medication and so on. 1. Strengthen skin care. Swelling of the limbs caused by mosquito bites will affect the blood circulation of the limbs, in the nursing process must try to elevate the affected limbs, while avoiding too much stimulation, the diet should be kept light, avoid spicy. 2. Local medication. In the mosquito bites external use of some of the anti-allergic anti-itching drugs, can relieve the itching discomfort, such as dinexed cream, dexamethasone cream. 3. Systemic administration. Choose some highly effective anti-allergic drugs to be administered orally, which can play a rapid anti-allergic effect, such as oral loratadine tablets, ebastine tablets and so on. If the disease is serious, the swelling and pain are obvious, and the general treatment is not effective, you can choose intravenous injection of methylprednisolone injection and so on. Due to the different physique of individuals, the effect of medication may also have certain differences, the specific situation must be consulted by a doctor, and choose the appropriate drug treatment.