Mister lost some fur so we took him to the vet. She did a skin scrape and unfortunately found demodex mites. All hamster apparently have them but their immune system keep them in check so something has to be going on to cause them to be problematic

So she gave him some selemectin and I'm going back for bloodwork on Monday

I'm hoping it's nothing serious, he's such a sweet hammy. Anyone have experience with this and hamsters? Also, please cross your fingers that it's nothing serious or that he is over whatever made the mites flair up and they just got out of hand.
Also, does anyone know any more frequented hamster forums I could post this in?