I used Chigger-X when I lived in Arkansas for 2 years. It worked for me. Years later I visited and stayed in a motel during hunting season. I got Chiggers on my belly and didn't feel them till I was back in Chicago, where they don't sell Chigger-X. That was pure agony.
third time this year for chiggers..... the first was really bad, had bites on my feet, legs, arms, and around the belly cause I was lifting a lot of rocks, logs and raking with a leaf rake (instead of using my leaf blower like I normally use when I'm grooming).
round 2 wasn't too bad but I had a good 2 dozen bites on the feet and legs.
3rd round sucks cause I had just a day or two of relief after the 2nd round seemed to be finally fading outta the picture.
only good side ---- I think I pin pointed where they're hiding.