I have what appears to be skin build up on the inside of both nostrils on the middle of the nose. It is white in color and gets hard and dry. I have had this recoccur fairly often for a while, usually it goes away, but now I'm into the 2nd month of this. It is very irritating and hurts often. I have been trying Bactracin, neosporin, vaseline, saline nasal sprays, soaking it in a saline solution, nothing is improving the condition.