I need some help with my fancy mice. They are almost 2 years old and have been experiencing intense itching and realy big open wounds behind the ears and on the back of the neck. They are still eating and drinking, but they seem to be pretty thin. I tried treating them for mites for a few weeks but that doesn’t seem to be helping. I had one mouse pass away from this, and I wanted to know if there is anything different that I can try to help them. The mite treatment helped for a small period of time, but now it just seems to be getting worse. I have tried to use a magnifying glass to see if I could see anything crawling on their skin but I have not been successful with that.