I don't know if this will work for you, but if I had demodex on my scalp, I'd wash my hair with demodex solutions shampoo. To insure that the critters don't get resistant, I'd rotate with other sulphur based dandruff shampoos. I'd also coat my entire scalp with vasoline or cold cream, and wrap my head with a turban for a few days. I'd do the cold cream turban treatment at least once a week. I'd also go forward with plans for an internal parasite cleanse as well.