try borax powder (ayw nang boric acid!!! hahaha), naa sa mga hardware store baligya - ayw tong mga naa sa lata, kana lng murag itakos2x lng nila (mura xa pulbos tan-awn) white powder na xa. i google lng ninyo how to prepare (earthclinic has a nice how to guide), effective xa. but FYI lng, paugha inyo doggie sa gawas kay kng mejo basa pa xa and pasudlon ninyo sa balay, gudluck nlng sa furnitures lol, kay mgputi2x! so paugha sa gawas, then if uga na, ibrush lng but not too hard kay pra maretain some of the powder.

by the way, gamaya lng ang hydrogen peroxide (pwd ra dili ka follow sa advised amt), kay my dog vomited jd, which is expected labi na kng tilapan nila ilang lawas, but not life-threatening pro kng OC mo gamaya nlng pra pud peace of mind.
effective xa on my 2 dogs, i think mga pit bull kay mejo prone to mange. and kani mn gud among 2 aspins naa ni sila mix pit bull but really small percentage na. first application, nidecrease ilang itching and the fur grew back in a matter of 3 days. as in nistart jd tubo ang kadtong bald spot. on the first week siguro mga twice a week iapply then decrease frequency hangtud mawala na ang mange.