J.B.
C.,
Try a cream called "Chiggerex". I found it at Wal Mart and it comes in a small white jar with a red top. It's good for any kind of insect bite and it does a great job relieving the itching. I had heard about the clear nail polish remedy, but from what I have read about the chiggers, they fall off the body right after they bite, so I don't think the nail polish is doing anything to the bug itself.
Good luck. I went thru this a few weeks ago and I know how miserable one can be. Take care.
J. B.
Paola, KS.