I'm sorry in advance for going into too much detail, but I wanted you to know the entire background of our yeast problems. I bought my frenchie at 8 weeks old and the breeder fed him Purina Pro. I noticed at about 3 months he started to have tear stains. I researched and switched him to a grain-free diet. I was using Orijens and the tear stains disappeared in 6 weeks. Approximately 8-10 weeks after being on the Orijens, he developed yeast and he has never recovered. He has been tested at the vet and it is yeast. He is pink/red in his armpits and around his private parts. His ears are typically not yeasty and his paws have a little yeast now and then. He's 100% all the time pink (if not red) under his arm pits and around his private parts. The other symptom is that he stinks. The vet gave me two rounds of antibiotics and steroids. The only thing that will keep his yeast under control is 1/2 steroid pill a day. I did a lot of research on yeast and decided to change his diet to Nature's Instinct so that he's now on a grain-free, potato free, chicken free diet. I read that too many starches could be the reason for his yeast, so that's why I changed his food. He also takes one NuVet vitamin a day. He adjusted to the new diet fine, but 5 weeks later, the yeast is still there. I haven't tried adding apple cider vinegar to his food yet, but I will start that tonight. Does anyone have any advise or suggestions? I've read about allergy testing.., but from what I've read, it's expensive and not helpful. My current vet is old and he definitely has "old-school" methods. He doesn't think the 1/2 steroid a day is bad for him, but I disagree, plus I'm sure he will become immune to the steroid eventually. Harvey is now 13 months old and I can't keep him on steroids forever. Can you tell me what my step should be? Should I ask my current vet for allergy testing, or should I change vets all together and go see a pet dermatologist? Are there specific tests I should ask for to get to the cause quickly? Thank you for your help!