Chiggers are horrid around here! Anybody know how to kill them once they've burrowed their maggot holes into you?
By the the time you start itching from chiggers, they are long gone. The itch comes from the tube which they created to get through your skin. They are the larval stage of a mite. We are just very temporary stooges, used for a quick meal so that it can move on to becoming an adult mite.
The only real remedy is 2 weeks of managed suffering. If scratching yourself raw is what you prefer to get you through it mentally, by all means, scratch away.
The best trick I know to work is somewhat preventative. When you return from an area known to be infested with chiggers, fill a small bowl with 1/2 bleach and 1/2 water. Strip down buck nekid. Use a warsh rag to cover EVERY bit of your skin (watch the wiener though). Once your skin starts to tingle, take a shower.
I guarantee this will work.