Hot Spot Remedies

I have just administered witch hazel and then diluted ACV to Jackson my golden retreiver. He had a hot spot last summer and now has another on the side of his face under his left ear. We took him to the vet who prescribed something and when we applied it he screamed. So I chose not to torture the poor thing. I actually had triamcinolone cream which actually healed him but I guess I did not apply it as long as I should have. I will update with results of the ACV application. He does smell like a salad and probably hates it.