Mosquitos. Calamine or calamine plus Benadryl (diphenhydramine) otc can make them feel better as can otc hydrocortisone.
It can help. Store aloe vera gel in refrigerator ; apply to affected area. Rub basil leaf on bite. It repels mosquitoes ; has anti-inflammatory properties. You can mix 2 parts baking soda w 1 part water. Stir into paste ; place it over the mosquito bite. Can use calamine lotion. If you have problems w generalized welts, swelling of tongue, lips, airway - you should get urgent medical care.