My Dog is losing hair

I have a miniature dachshund that has had many issues the last few months. She will be 8 y/o next month, UTD on shots and is spayed. She has IVDD and had spinal surgery a few weeks ago. In the meantime she had contracted some respiratory disease which is now gone but now she’s super allergic to something or has a bad case of yeast! She is VERY itchy and peeling so much she is losing hair! Her nips and inside of her ears are peeling too. She smells kinda like buttered popcorn too! That’s why yeast maybe?? 🤷‍♀️ What is it please and what can I do?! I’ve spent @ $10k on her over the last month and a half so trying to avoid going to the vet again if at all possible! Thanks!! P.S. when she had the respiratory stuff going on her eyes were super irritated too but that’s gone.

Hello - and I'm so sorry to read about this; it looks and sounds to be quite extreme.  There are gentler possibilities, but one that rang alarm bells for me was Toxic Epidermal Necrolysis, which can cause blistering and / or peeling of skin and can be associated with certain antibiotics.  For this reason, please don't avoid your vet; contact your emergency team for triage and stress the intensity or send pictures, because it may be that they need to see your dog immediately.   Yeast infections can smell like buttered popcorn, but these are usually secondary to something else, so that doesn't rule Toxic Epidermal Necrolysis, or even lymphoma (a type of cancer) out.  Failing that, a common reason for dogs to attack themselves would be pain, which might even tie with the IVDD and also co-exist with Ringworm or other secondary infections.  More commonly, Mites, for example Sarcoptes, can be associated with very intense itching and your vet can perform a fast scrape / slide test to rule them out.  I hope that your vet can examine your dog in order that any immediate problems are being addressed, perhaps including providing some relief for the skin discomfort.