That's why I asked. Sarcoptic mange mites will be terribly itchy, and I believe they can transfer to humans, scabies, and are very contagious to other dogs.
Demodex is more of a immune system issue. Yes it is a mite, but dogs have them and their immune systems keep them in check.
Finding Demedex can actually be tricky and treating it as well. They will often do skin scrapings and then if they don't see anything, they might do a hole punch, and send it to a dermatologist. They may still not find anything, but changing foods didn't help so now they are going to do mitoban baths even though they found no mites. The baths will dry out the skin and the mites will intensify before they die, so they tell you to give the dog vitamin e and fish oil. After 4 baths, each 2 weeks apart the dog is looking somewhat better than he looked at his worst -- after the baths started. Or you are hoping he looks better and trying to believe he looks better.
After six weeks, he does look better. But then they tell you that with treatment or without treatment it seems to get better in about six weeks. Really? Yeah, unless it is getting worse, that would be generalized demodex. But advantage multi actually works on demodex mites, so after getting them somewhat controlled, using that once a month might help the immune system keep them in check. Though it might make better sense to boost the immune system with some good supplements.
The dog can be itchy with demodex if he gets a secondary staff infection to go along with it.
Anyhow, good luck with the vet appointment. This is totally treatable or fixable or at least not life-threatening.
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