My American Bulldog Has Some Kind Of Skin Illness And Keeps Losing His Hair On His Back And Chest Area. We Have Treated For Mange, Fungus And Everything Else We Can Think Of. When His Skin Is Irritated, He Has A Terrible Odor. Can't Keep Running To T?

So dogs loose there fur do to fleas my mother in-law has a dog thats hair falls out when she gets fleas them she gives her flea meds and it still falls out cause that irritated the skin the vet said give her fish oil to help her coat you can buy that at pet co there are also other medications there for there fur

My dog had something similar . The vet said it was a skin condition that he was born with. I'm assuming  his skin gets irritated, he scratches and until he  sometimes bleeds and then the cuts get pus? This could be causing the smell. That is what happened with my dog anyhow. He also lost a lot of weight and is having some trouble putting it back on. This may sound strange but iodine and Vaseline  helped him with his hair growth .