You may have luck with Biotic pH-. It’s a supplement for dogs with this condition by Wysong.
I have used their Innoculant and it was a miracle. My friend is using the one for teeth/oral health. Her dogs love the stuff, but it’s too soon to tell if it’s working yet.
I’ll admit I do have a bias to this brand. I’ve had a lot of luck with the products I’ve used from them and their customer service has been wonderful. They answer questions quickly and thoroughly and their suggestions have worked out well.
