Hi guys, I've been reading around here and you guys seem to know your stuff. I recently found a baby garter in my basement and, due to the cold and his size, chosen to keep it. It's been a bit lethargic and I noticed that it seems to have something caught on it's jaw and the front of it's nose. We have two dogs and a cat so could one of them have taken a swipe at it?
It looks like some sort of gray gunk or something, I honestly don't know what it could be. It might be sticky because it has some fuzz stuck to it, which I'm too scared to pull off. It just appears to be stuck in it's mouth, but I don't want to pull it for fear of injuring him. Would a bath help loosen up the substance, or should I pull it off? He doesn't appear to be in any pain when I do. I'm very sorry I don't know what species it is, but I live in New England if that helps. Here's a picture, you can kind of see the substance on his nose.



He did seem to perk up at the warmth of my laptop, could he just be a bit cold and that's making him appear sick?
I'm sorry if I was rambling or if this isn't an appropriate post, I'm just a bit worried because my friend said it seemed like it was dying and I don't want it to die, obviously.