Try the cattle ear tags or look in cabelas or any other sporting goods store and buy the mosquito tag.. clip the tags to your bridle or tie it in their mane.. That may help.

Turkey mites are awful, my horses got into them 2 years ago.  I also got them, still have scars on my legs! 

We had wormed before going too.  The ivermectin may have worked, but from the itching, the horse gets sores, that's what gets so nasty.  My sorrel had sores for 3 months after the bites.  I finally treated him with a benzol shampoo and dried up his scabs.  I think Listerine (may have to dilute a little) will help.  I use listerine for lots of horse issues. 

Good luck, I feel for you, they are 10X worse than a flea bite!!

A body wash of Absorbing Veterinary Linament will kill secondary infections and sooth the lesions.  Dilute the linament by adding 2 cups linament to one gallon of warm water.  This wash is also very refreshing to humans after a hard day.

Marla

I mix up a special wash that works on just about ever skin problem that people or horses can have....here goes..

Ingredients:

1. Iodine solution 10% (wal-mart) same as Betadine only cheaper. 2. Antibacterial Soft Soap- hand wash. 3. Baby oil or olive oil. 

For Horses: wash horse with antibacterial soap...towel dry ...mix 1/4 cup of iodine and 1/4 cup baby/or olive oil and apply to infected area. Rub on the skin /(hair) in a circular motion.  Let this mix dry on the horse for 3 to 4 days.  Then rewash with antibacterial soap again....the infected areas should be 99% better. This work wonderful of Rain sores...grass sores on the hooks....etc.  I have used this to treat many skin problems and have saved myself a pretty costly vet bill. (I used to work for a Vet years ago)..beleive me this mix works!

For people: wash with antibacterial wash...while wet. pat on the iodine - let it stay on your skin for a few minutes...then rinse...apply baby oil- or olive oil and dry off. Repeat this bathing method for 3 to 4 days...your skin problem should be gone.

Hope this helps

PJ

Yes I really think it works on most skin problems.  I have used it for several years ....our daughter told me I should bottle it up and sell it.  The first time I used it was for Rain Sores....we had the Vet out---he gave a inj. of ?...and after about a week the problem wasn't getting better so....I just thought of what I could mix up and bath my horse with ... The mix has Never failed me yet. Your dog will look oily and ratty for a few days....let the oil and Iodine mix stay on the scabs for about 2 to 3 days. Bath again with the Soft Soap - and rinse well....dry with a hair dryer...watch it for a few days to see if the spots are gone....if not let me  know -email pjdacci@hotmail.com