Dogs like to put everything in their mouths. They get fungus into their system, especially from fallen twigs which if you analyze most they already have fungus on them.
Braggs apple cider vinegar kills fungus, test a little on a white fence that has mold and you'll see. Mixing honey makes it more attractive for the dog to drink and honey kills bacteria.
Cook a little clove and rosemary into their food will help tremendously. If you dog ever spits up white bio, putting a few piece of twizzlers into the drink will clean their bio glands of that.
People always give me their dying, human and animals, I have researched a lot. I was given a dog that was about to be put to sleep over a year ago due to constant vomiting. We have to feed him 3 to 4 times per meal just for him to hold anything down. Constant cleaning, PIA.
After a few weeks they will respond. This dog hardly vomits at all now after a week of full regimen. It's never too late. Anyone having any problems let me know. Godspeed Patriots.