Hi! Would really help me a lot to find out how your appointment with the dermatologist went. I saw one who shipped a skin biopsy off to a lab. It didn't show any demodex, but I'm fairly certain that they're suppose to look at skinnscrappings and not send off a sample, even in formaldehyde. I can't find the information again, which is extremely frustrating, especially considering this dermatologist pointed out that she couldn't see any in my skin while sitting a few a feet away and having not taking an up close look at all yet. She did a biopsy, yes, and claims that they re preserved in formaldehyde, but I'm still doubtful considering everything I can find about the professional process states that they are found through skin scrapings.