Chiggers...infestation?

I may check with a vet, I know it sounds crazy, but they have great experience with all sorts of bugs including chiggers/mites. I had an infestation of fleas and it took forever to get them out of the house. I used those bombs, the only disadvantage to them is that you have to remove or clean every single surface when you are done. It may not seem like it's on things, but trust me, it is. Wash every surface you can with hot soapy water, the heat kills the chiggers. If you are out camping and suspect they are on some clothes or something, you can actually lay the clothes out on blacktop, just the heat from the sun on the blacktop is enough to kill them, or so I have read.

hope that helps