Mites Medicated, how to deal with cleaning?

How are you administering the dose? Are you putting it on the bald patches behind her ears?

It's an oral dose (liquid, syringe-fed) based on her weight. She does have bald, itchy patches behind her ears though Would taking a flea comb to the little mite-corpses help at all? or just make me feel better because I'm doing something?

Ah okay, then you're doing it properly. I'm not sure why it wouldn't be working, unless your guinea pig actually has lice or fleas instead of/as well as mites? The ivermectin wouldn't affect those. Do you have access to revolution? Revolution will treat mites, lice, and fleas simultaneously and is a topical application (applied to the skin). The bald patches behind her ears are supposed to be there, and that's where ivermectin is best applied if you're using a topical dose, because it gets absorbed through the skin (there's less thick hair in the way). I also apply revolution to the bald patches behind my guinea pig's ears when I use it because it works in the same way- gets absorbed through the skin. See if you can switch to a pesticide that will kill lice fleas and mites simultaneously and watch for improvement

Thank you! If I don't see improvement after her second dose on Monday I will try Revolution. The mites are concentrated in the hair around her bald patches, so that's where she scratches most and I was concerned about them. Good to know