I bought a new silkie about a month ago. I bought her by picture. She was shipped to me from the east coast and I'm west coast.all was well except she came with lice and mites!! Sigh.. I didn't notice this until a couple of weeks ago. What I've done. .. I used poultry dust then not getting the results I used ivermectin. This worked wonderfully for the body bugs and lice but it seemed some now have moved to the crest.my silkies have huge crests. What can be done now about the mites in the crest. I'm reluctant to use powder around their face or any dusting material they can breathe in easily but I just don't know what to do. I have one more treatment with the ivermectin but I can't put that on their heads. Yes she has given the mites to my other birds because I didn't know she had them. Lesson learned..but the bugs are now only on the girls crests! All of them. Do you all have ANY advice on how to treat the crests? In my research I found I was dealing with lice which is now gone and northern foul mite. Which is still living on their heads. If I must I'll use the powder but I was wondering if their was a better way? Thanks so much.