Jason,
Red mange can be stopped with Tackic, can get it from a Vet. Use 15 oz. to a gal. of water soak coat every week untill hair comes back and repeat if comes back. Red Mange in males and females, dog shpould be fixed when well to cut down on coming back. Stress is a cause of out breaks.
You can also get the Taktic dip on the internet. I got two cans of it real cheap off the net. You can get it a lot cheaper on the net than at the vet. I still got one can. If you are close to Santa Fe your welcome to come over and pick it up. It does work for red mange like Mr. Mason say's.