I've done all the cleaning, I'm just worried about those mites on his jaw (that I'm pretty sure are dead, there was a lot of soaking/spray in that area and there is no way they are that resilient). For this, it sounds great and pretty simple, but how would I hold the snake still for this? He is rather new and I've successfully fed him 3 times and he's not used to being held too much, so how do I go about getting those with the paper and holding him still?
Just hold him and let him settle down to where he's not moving around much then try it, if he keeps moving then I wouldn't worry about it right now. If you start trying to hold his head then you're going to stress him out more then the mite treatment is doing already.