Mcphyster (Eastland, Texas, Usa) on 06/09/2012:

Wet the end of your finger, dip it in Boraxo and vigorously rub it on the chigger bite. It not only feels good but will stop the itching usually with only one application. I live and work outdoors in chigger country and this is one thing that I have found that works consistently. I do intend to try the aspirin tho', next time around.