My nose felt slightly sore when I was rubbing it about 2 weeks ago. I discovered that I had an unexplainable sore inside my right nostril. It took a few days for a scab to form and it seems to be slow healing. Now about 2 weeks later the scab was sort of ready to come off (I did pick at it) but it doesn't feel like it has completely healed. And it seems that I now have another smaller sore on the inside of the opening rim, same nostril. I haven't put anything in my nose. I'm wondering if I did something while sleeping..? I don't know what else could cause an open sore in the nose?