★★★★★
I had an old farmer live next door for many years and when I got chiggers from cuttting fire wood one fall he told me to rub the bite with Campho Phenique and it would kill the chigger in one application. (and it did) It comes in a small green bottle for few dollars and last a long time, CVS normally carries a few bottles but any drug store should have a bottle on the shelf. Actually it works for all insect bites, I just dip a cotton swab in the bottle and rub it gently on the bite, the odor goes away in a little while. God Bless