Hi,
How awful for you! That must be so hard to deal with. I have a chronic sore in my left nostril that never goes completely away. The doctor prescribed Mupirocin 2% ointment. It takes the sore away but it always returns. It's an antibiotic. You have to get it from a doctor not over the counter. If I don't use it I get a very bad sore that bleeds. The ointment is very soothing. It might help in your situation. It wouldn't hurt to try it.

Also prayer helps. God is there for you and can fix your nose. I will say a prayer for you also.
PML