My one horse is super itchy despite my attempts the keep the bugs away. Any good products or remedies I can spray on? Thanks!

I like the Kinectic Equishield IR spray for my guy that reacts to bug bites.  It seems to work best if you rub it in a bit after you spray it on the bites.  If it's real bad a dose of steroids from the vet will help knock it out.  https://www.amazon.com/Kinetic-Equishield-IR-Spray-Vet/dp/B00BNRB11G

Edited to add:  They also make a shampoo that helps and lasts awhile after you bath them. 

A vetalog shot. My itchy gelding usually need two, sometimes three shots to get thru the summer.  Relief is almost instantaneous when he gets his shot.

Platnium makes skin & allergy powder. I like it. I put heidi on it in the early spring. I have used dex for her also, but only twice a year & I feed the skin & allergy until fall. 

Something with Spirulina in it! We have an equine allergy supplement that contains spirulina so two co-workers started giving their dogs spirulina for allergies/itchiness and they have seen great improvements. 

Coat Defense Daily Preventative Powder can be used as a barrier against skin and coat ailments like chafing, fungus, and bacteria. Just sprinkle or hand rub under all tack, boots, and blankets to dry and eliminate bacteria. Use as a dry shampoo between wet shampoos to protect and retain natural shine. Quickly eliminates odor, fungus, hives, rain rot, sunscald, and itching. Also safe in human boots and helmets.

   There is also Coat Defense Trouble Spot Drying Paste. The dry barrier solution to equine skin and coat problems. Coat Defense Trouble Spot Drying Paste is an all-natural, safe, and effective solution that can help speed the healing of multiple equine skin ailments such as scratches, cannon crud, dew poisoning, hives, bug bites, summer sores, wounds, lacerations, and proud flesh. Can be used on open wounds to create a protective barrier. Relieves on contact, all while continually drawing out toxins and moisture to allow skin cells to mend. Non-toxic if licked.

I use Coat Defense for daily use on a black horse, and he really shines!  It can be ordered from Valley Vet, Amazon, Smart Pak

Kinetic vet ibh salve and spray! Love this stuff!!