★★★★★
Rub a wet bar of fels-naptha soap (found in laundry detergent aisle for about $1.50) onto bug bite/mosquito bite. Rinse with cold water. Itching disappeared for me in about 1 min. Redness and swelling visibly reduced or disappeared. May need to repeat this if symptoms reoccur. You can also leave a bit of soap to dry on the bite. My usual week-long mosquito bites disappear in no time with 1-3 applications and no itching.