Best links that I've found so far about chigger bites. The takeaway: These bastards are pure evil. The first thing to do is wash them off, as unlike ticks they wash off easily. They don't burrow contrary to folk wisdom. The bites are the itchiest, but just have to be treated like bites. Nail polish may work, not by fighting the chigger but by sealing the hole and preventing scratching.
Best link: http://www.medicinenet.com/chiggers_bites/article.htm
A cute children's link: http://kidshealth.org/kid/ill_injure/bugs/chigger.html
A dry article: http://www.wikihow.com/Treat-Chigger-Bites
A warning against scratching: http://animals.howstuffworks.com/arachnids/question488.htm
