It has a spring cold. We take vapor rub and rub on the noses and it helps but what really helps alot is give a shot of penicilian and if the place on the nose gets bigger put a shot of the antibiotic in the swelled up spot and it will heal right up.
we take and cover the hole with wire and then cut out a door the size we want and then use hog ringers to put the piece back on for the door. works out pretty good. and we fix a latch with a wire.