ok, so the cold has gone away in our boy. well, late last night i noticed that his nostrils are covered. the problem is that i'm not sure if it's because he's on the verge of shedding, or if it's another problem. it's clear, you can see it's not "mucusy." his eyes and scales are starting to show the beginning of a shed, and you can tell it's not that he's sickly. he's feeling good because he snatched a rat out of hubby's hand today before he got it half way in his feeding tank, with no hesitation and ate it nicely. his heat is steady, he's got some humidity but not overly, and is acting happy except that he's breathing out his mouth. should i try to clean up his nostrils, or just let him be? thanks in advance!