Adhd spouse support

My spouse has ADHD and his rejection sensitivity is ruining our relationship. It feels like there is no way to get through to him on our issues so we can resolve them. It's like walking on eggshells and I'm becoming an emotional volcano ready to erupt from so much frustration. He doesn't think ADHD should be medicated because his mom told him long ago that it was bad medicine that caused more problems than they were worth. I'm curious if anyone is going through this with their spouse and how do you get around it or if someone who is ADHD and medicated can tell me if they can see a difference in themselves on it.