Permethrin is only thing that works for me for chiggers and I've tried every remedy I could find what with owning some river properties and a literal swamp that are infested with them. Permethrin is an insecticide that is labeled to work best for whatever causes scabies and lice but does come in a cream that you can get as a prescription. Docs dont like to prescribe it very much bc for some retarded reason the instructions always say cover entire body with it which would probably do more harm than good as dangerous chems leak into your body. It can easily be found online and if you decide to use I recommend just applying a little bit to affected areas a few times a day. If I recall correctly the itch would go away the first time using and all accompanying red spots and hints of scarring will be gone within 7-10 days. It will prevent their eggs from hatching and feeding on your body while their excrement causes uncomfortable itching. The relief from this can be felt from first application. It also comes in a liquid form that can be bought from feed stores and used in sprayers to cover large areas of fields or around your home. I have seen smaller bottles with a little pump top as well that you can spray on your clothing or tents. I have not tried those bc it's cheaper to grab a gallon of it and water it down as necessary for whatever application you need it for. Good luck bro Oh and to add along, I saw that nail polish was mentioned. Iirc it may kill the adult but doesn't effect the eggs so in a day or 2 you will itch again as they hatch and begin to breed. Idk the science behind it for sure but nail polish didn't work for me. Oils such as rosemary and peppermint did help the itch same as everclear/vodka or rubbing alcohol applied with a soaked cotton ball but did not knock the basterds out in any significant way