u/DependentOk695

My dog Chewie is in horrible shape and I have no idea what else I can do. For context, she is an around 8-9 year old cheweenie, and for the past year or so, has had a horrible problem with scratching and biting herself, and it’s pretty much ass she does all day. We’ve taken her to multiple vets multiple times, I try and wash her twice a week at least, and we give her non-chemical anti-itch sprays twice a day. She has lost all of the hair on her stomach and chest, and is losing large areas on her side, with it occasionally being scabbed up and flaky, or worse, bleeding a bit. This has stopped her from wanting to play as much, she’s very inactive, and she always smells horrible even 30-40 minutes after baths. Some vets have said allergies, others have said yeast infection, I don’t know what to believe, and I don’t know how to fix this, I would be extremely grateful if anyone could help me decipher what could be wrong and how to fix it