I have gone through your query.
It suggests that you are suffering from the vestibulitis.
I personally advised to go for
1. Antibiotic for removal of the infection.
2. Anti-inflammatory drug to reduce the pain and inflammation.
3. After infection subside then go for the liquid paraffin
nasal drop 5 drops 5 times a day
4. Avoid putting finger in the nose.
Wish you good health