So my little guy finished shedding sometime last night. I took him out today to clean his cage and noticed he had some shed left on a nostril. My questions are:

He was making a bit of a strange sound from that nostril. I opened his mouth and didn't see mucous. Im going to keep at eye on him but could he have been making this sound when he breathed out because of the stuck shed on his nose?

Also, I removed the shed with a wet q-tip (only a small piece) and put him back in his tank. He's extremely upset. How long should I leave him alone before I handle him (I'm going to let him de-stres but I'd like to get him used to handling) and when I handle him next time, will be "remember" what I did and thus try to eat me everytime I handle him?