One of the main manifestations of nasal mucosal erosion is nasal bleeding, which should first be ruled out as being caused by trauma, as well as bleeding caused by dry air or pollutant irritation, and should be brought to greater attention if the frequency of bleeding increases after this is ruled out.
If you have not sought medical attention at this time, it is possible that the bleeding may recur in the absence of treatment and improvement of the causative factors.
If treatment is already underway at this point, it is possible that the primary nasal disease has not been eradicated, or that the diagnosis has been misdiagnosed or the treatment inappropriate, at which point a follow-up visit to the hospital should be made to explain the situation to the doctor and develop the next step in the treatment plan.