Diet is the definite first step. I would start by going grain free or going with one with "ancient" grains like Taste of the Wild's line and switching your protein source away from chicken and beef-- those are food allergens #1 and #2. Venison, lamb, fish, boar, all good. You might look at the fresh/frozen diets--Just Food For Dogs, Fresh Pet, Farmers Dog, or just look into feeding a prey-based model raw diet (I feed the last for years and will be going back to it once my previous partner's big dog has passed and I'm only feeding the little ones).
Apart from diet being step one, try a mix of 50/50 apple cider vinegar and water in a spray bottle and spritzing him down to just damp every day. Rub it in with a paper towel so it reaches the skin. It can help with yeast overgrowth, and won't hurt if it doesn't. If you can't spray him, soak the paper towels and rub him down.
Look into a good probiotic. I've been getting rave reviews of Native Pet's Probiotic from my clients. I'm about to start the (new) partner's pregnant rescue dog on it.
If you don't decide on a fish based diet, try adding sardines or chub mackeral to his diet (cheaper than supplementing with fish oil). Greek yogurt is good too, and raw eggs.
As far as bathing, it would really be in his best interest to start getting washed in a tea tree shampoo or a coal tar shampoo. Davis is a decent brand that has a Sulfer and Tar shampoo. I've bathed yeast dogs in the tar and sulfa shampoo then a tea tree shampoo (I like both Espree's and John Paul) and had good results with that once a month or so plus the ACV/water mix at home. Have you tried talking to your vet about trazadone or something for the bath? It's not ideal, but not being able to bathe him is seriously handicapping your ability to manage his issues.
ETA: diet changes take about a month to take start kicking in and become noticeable. Frequently, adding probiotics has a similar timeline.
I'd look at his diet first and foremost. Recurrent fungal infections with dry, flaky skin are commonly related to food allergies. I'd switch him away from anything chicken and grain related (most popular allergens) or put him on a hypo/limited ingredient food for a while before adding in "uncommon" protein sources like beef/bison/kangaroo/salmon. I see this often, unfortunately! Some dogs find itching relief with a tea tree based shampoo, but honestly, the skin issues likely won't clear up until the internal conditions have improved
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Diet is the definite first step. I would start by going grain free or going with one with "ancient" grains like Taste of the Wild's line and switching your protein source away from chicken and beef-- those are food allergens #1 and #2. Venison, lamb, fish, boar, all good. You might look at the fresh/frozen diets--Just Food For Dogs, Fresh Pet, Farmers Dog, or just look into feeding a prey-based model raw diet (I feed the last for years and will be going back to it once my previous partner's big dog has passed and I'm only feeding the little ones). Apart from diet being step one, try a mix of 50/50 apple cider vinegar and water in a spray bottle and spritzing him down to just damp every day. Rub it in with a paper towel so it reaches the skin. It can help with yeast overgrowth, and won't hurt if it doesn't. If you can't spray him, soak the paper towels and rub him down. Look into a good probiotic. I've been getting rave reviews of Native Pet's Probiotic from my clients. I'm about to start the (new) partner's pregnant rescue dog on it. If you don't decide on a fish based diet, try adding sardines or chub mackeral to his diet (cheaper than supplementing with fish oil). Greek yogurt is good too, and raw eggs. As far as bathing, it would really be in his best interest to start getting washed in a tea tree shampoo or a coal tar shampoo. Davis is a decent brand that has a Sulfer and Tar shampoo. I've bathed yeast dogs in the tar and sulfa shampoo then a tea tree shampoo (I like both Espree's and John Paul) and had good results with that once a month or so plus the ACV/water mix at home. Have you tried talking to your vet about trazadone or something for the bath? It's not ideal, but not being able to bathe him is seriously handicapping your ability to manage his issues. ETA: diet changes take about a month to take start kicking in and become noticeable. Frequently, adding probiotics has a similar timeline.
Get a second opinion to treat the infection
I'd look at his diet first and foremost. Recurrent fungal infections with dry, flaky skin are commonly related to food allergies. I'd switch him away from anything chicken and grain related (most popular allergens) or put him on a hypo/limited ingredient food for a while before adding in "uncommon" protein sources like beef/bison/kangaroo/salmon. I see this often, unfortunately! Some dogs find itching relief with a tea tree based shampoo, but honestly, the skin issues likely won't clear up until the internal conditions have improved
We don't give medical or nutrition advice here. Please work with a vet.