Need Advice For Dog Itch Problem

[Tri Girl]

My golden has the same issues. This time of year he can't stop himself from scratching and biting his skin off- he's just allergic to the grass or something. Our vet recommended some expensive allergy drugs. I didn't like that idea. I have a friend who's a vet and he said to try fish oil capsules. They've helped my pup, and he doesn't scratch or bite nearly as much. It's not gone altogether, but it's much better. I don't know why it works, but it seems to.
I've also used Seba-Hex shampoo for dogs (not natural, tho and it's a prescription shampoo) and it helped with his itchiness.