Dog licking nose raw

My dog keeps licking right above his nose (on his snout) since we adopted him a few months ago. He's licking the spot raw because he always licks the same spot. I've read it can be a form of OCD or anxiety. But it doesn't matter if he's relaxing or somewhere new. We have him on seasonal allergy pills for his sneezing and he rarely sneezes now. Is there anything we can put on it to help heal the spot and prevent him from licking?

Hello! - and thankyou for this question, which illustrates a typical difference between an owner and a vet considering a skin lesion.  You have defined the problem extremely well and now want to know what to put on it;  a vet would want to know what is causing it next. There is a good reason for this.  If the lesion is caused by an allergy, a drug that challenges the immune system may be helpful.  However, if the lesion is caused by mites and I were to recommend something to challenge the immune system, the chances are that the mites would proliferate and the lesion would grow. Certainly, anxiety could be on the list, although there are much more common locations for this (why go to the trouble of licking the top of your nose, when your paws are right in front of you?) Other possibilities for licking the nose include the autoimmune skin diseases, which are particularly well associated with certain breeds, for example the collie, and often occur where the specialised internal nasal membrane skin meets the regular skin.   A biopsy is often needed to diagnose this and again, they respond well to immune-suppressant drugs.  Less so  fungal diseases (although these are less likely to itch0).  Cancer, insect bites and neurological abnormalities  may also be possibilities. I would urge you to show this nose to your vet as soon as possible;  if continued aggravation of the site is happening, an emergency vet may be able to reduce the self-trauma in the meantime.  Best of luck and please let us know how you get on.