Thank you. Yes, I feel so bad watching them rub their stomachs on the ground and biting at their legs. I just started feeding garlic powder to my horses, so I will see if the nasty little bugs like that. Looking forward to cooler weather as I am sure the horses are too.
I was going to ask specifically what skin issues but you just answered it.
They have sweet itch from biting midge flies.
If they have spots on their faces and neck area where there isn't any hair, they are probably dealing with neck threadworms, a/k/a NTW's, a/k/a Onchocerca worms.
They aren't worms in the real sense but microfiliae caused by the bite of Midge flies.
Double dose both of them with PURE Ivermectin. Believe me it works; it took me two years to work up to double-dosing my affected horses but it works.
You may or may not have to repeat the double dosing in 4 weeks.
Once you double-dose, within 24 - 72 hours the skin rashes will get much worse, then start to heal. That is because the microfiliae are dying off and making the horse's life miserable.
In the meantime, use diaper rash cream and some type of antibiotic ointment on their belly lines and other raw areas. The diaper rash cream stop the flies from landing and chewing on them, and will help make the itch go away.
You'll have to clean them and re-apply twice daily
Don't know what it is about Arabs but my 27 yr old has been sensitive to fly and tick bites his entire life
My Walking Horses aren't affected to the large degree the Arab is.
Hope this helps