I have an imported boa and I've noticed something strange about his nose. His nose looks absolutely normal after shedding(pic1). Then a few weeks later the nostrils start to narrow somehow and as you can see (pic2, pic3) almost disappear. That stage remains until the next shed when it starts over again. Also noticed some breathing difficulties. He is rather taking breath through the mouth due to the closed nostrils. Has anybody seen that or had experience with that? Any idea how to cure? Any comments, opinions could be useful.
Thank you in advance.
Regards,
Adam

