My 10 yr old gets like this too just not as serious. I believe she is severely allergic to fleas, grains, detergents, shampoos and jars seasonal allergies.
I switched her food to grain free, salmon kebble and I feed her canned salmon with it. I also have been switching up everyother week to grain free beef kibble, organic and I feed her the crave brand and Rachael ray. I also use a food processor and add broccoli, carrots and blueberries to her meals. She has taken well to diet change but a little gassy when I add broccoli and bad breath.
I took her to the vet for an eye infection. I noticed a flea jumped on her 2 days later all her hair fell out around her neck head full of scabs, stomach had blisters all over it, legs hair was half gone. I gave her 3 flea baths, vaccummed and washed everything in my house.
I started researching oils because she gets skin plack which looks like it could be fungal. I found a products for african women called Hollywood Beauty - tea tree oil. It has anti fungal fighters, aloevera, mint, sunflower oil, tea tree oil, vitamin e, and does have peanut oil in it. I have had sucess with using this product. In 3 weeks her hair is coming back and skin has been showing vast improvement.
I found a company online that tests dog hair for 300 allergies all types. It costs about 147.00 which beats thousands in vet Bill's for skin scraping, bloodwork, hair samples, etc. Link below:
I'll add update once I get the results.
So far the diet change, frequent baths ( I use puppy hypo allergenic, dye free, grain free shampoo), and tea tree oil have helped her skin.
I hope you find some relief for your dog. Looks so painful.
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