I agree. I’ve only had him a month and admit I didn’t know what to look for until I just searched why he would have dandruff. Should I just keep with the Revolution? He has seen a vet. They did a skin scraping and tape test. He didn’t see anything. I also know that it doesn’t matter and that it is hard to find.
Honestly I am itchy too. I get random red bites on my arms throughout the day. I seem to be the only one though. My husband and daughter are both here. I clean ridiculously everyday. Clean his cage with vinegar and water mixture, change his litter bedding, vacuum all floors, which is hardwood, and the couch. I have put up all rugs and spray a flea and tick repellent every other day on the couch and upstairs floor because it is carpet. Also change our bed sheets and stuff every 2-3 days. He has pretty much nothing anymore. I took all his toys and threw away cardboard and wood. He literally has a litter pan, water bowl, and plastic hidehouse in his cage, but I do still let him out to roam. He doesn’t go far. Is it possible that it’s just not healing yet?
I’m trying to add a picture.

I did take him to the vet. He did a tape and scrape test, and said he didn’t see anything. Some people have told me I could get irritation from the mites if they bite. I also could just be psyching myself out.