I would definitely seek out a board certified veterinary dermatologist. My schipperke has an autoimmune disorder and I took her to a specialist. With skin issues you often can't pinpoint exactly what it is but alot can be ruled out. It's definitely worth the extra cost because they can narrowly tailor what's going on. You actually save time and money. I recommend a veterinary nutritionist as well because diet is so important to overall health- definitely affects skin issues. Good luck!