Hi thanks for asking question. The bitten site wash with soap and water frequently in day time. The ice pack cover with cloth can be applied over affected site for 15 minute in 5 to 6 times a day. Baking soda mixed with water can be applied over affected are to relieve inflammation. Bromelain obtaine from pineapple available as tablet can be helpful. Pepperment oil drop can be applied over affected bitten site to fasten healing. If still no benefit then local antihistaminic cream or spray can be applied. Oral antihistaminic also can be taken. Try these measure for few days.Mostly it will help. If still no benefit then further work up is done with use of steroid also needed. I hope my suggestion will help you.