No issues for me. I started using it after I got covered by chigger bites in west central Illinois one year for the squirrel opener August 1. Spent a month in bed covered in calamine lotion after that. Sawyers has kept the chiggers and ticks off me since then.
I've been using it successfully for years as well with no side effects that I can see. On a trip to Africa last year my brother and I coated pretty much everything in it while my dad did not. Guess who came home with a hitchhiker tick between his toes...
I do the same. I lay all of my hunting clothes and use a garden sprayer to give them a good soak. You can mix a few gallons for the price of one bottle of Sawyer
Been using it for 5 or 6 years now and highly recommend it.
Last year I had several articles of my dedicated warm weather outdoor clothing treated by a company called Insect Shield. It was relatively inexpensive and is advertised to last at least 70 washings. Worked great at repelling ticks and such all last summer. The real test will be to see how effective it is again this summer.
Self applied Permethrin only lasts 6 washings or six weeks...whichever comes sooner.
Why try spraying clothes with permethrin yourself when you can use Insect Shield’s clothing treatment service? Just send us your clothes, and we’ll treat them with permethrin for you.
Odds are high that it will hurt or impact your DWR. And if you DWR treat your clothes after spraying with Permethrin, then Permethrin's effectiveness will be reduced or eliminated.
This is due to the way the Permethrin is made available to insects that get on your clothes. I spoke with a company that markets Permethrin treated clothes to foresters and timber cruisers. They know their stuff.