Bogey got Demodex mange at 11 months old. They gave him Ivermectin once a day orally for 6 weeks. He still tested positive, but many less mites, so they treated him for another 2 weeks and it completely resolved. Very common in young dogs as their immune system is not fully developed. He should be on ivermectin daily, and you should be giving probiotics to boost his immune system. These mites are on ALL dogs, it's just the young ones or immune compromised ones that can't fight them off. He is not contagious to humans or other dogs. Stay the course- it is easily treated! Ask any questions you may have!!!