Re: Sweet itch?
Did think about mites - we've been riding thru long grass recently, so am going to wash fetlocks with the flyfree shampoo afterwards, whenever we do that.
Have just looked up about pinworm, and my wormer should have that covered (Equest) but will keep an eye out.
It seems to not be getting any worse, so will keep washing and fly spraying. If it gets worse I'll talk to vet about the Maleseb.
The lowering immune system makes sense, and I think I'll give the Avon skin so soft a go too.
As for fly rugs - I like to give him a break from rugs in the summer as he hates them, and judging by the amount of masks he shreds every year, a fly sheet wouldn't last long!