Should heal ok...you can use a little dab (spread thinly) of Neosporin ointment (NOT the kind with pain relief, only the regular formula). Re-apply daily for
a few days until it seems to be healing ok. Might leave a little scar, but that's life...as long as no infection. Make sure the Neosporin doesn't block his nostrils-
might be easier to apply with a Q-tip.
Try to figure out why he's rubbing: if he wants out, you have to play detective & figure out what's wrong...too hot? too cold? doesn't feel secure in the
hides? hungry? cage too small?