Hi. I have a Blue Pit and a Brindle Pit. Both had some skin issues when I got them. Nothing helped their itching, redness, or loss of hair. My vet told me that the monthly heart guard they get will take care of mange if that’s the cause. She didn’t want me wasting money on other pet meds that didn’t work. To help, try to keep them out of the sun as much as possible. I used Mane & Tail Shampoo/Conditioner, then I poured a cap full of apple cider vinegar on the infected area; lastly, after it dried, I rubbed in some olive oil. I did this for 2-3 weeks, they stopped itching and the hair grew back. There’s also no signs of it returning. Now after I wash them (once a week), I rub their coat with coconut oil. I put a little in their food too.
Hope this helps.