Nasal hypersecretions
A significant reduction in nasal hypersecretions was observed after BTX-A injection started by the second week. Upon comparison of the mean nasal hypersecretions rate before and after injection, the reduction in nasal hypersecretions was as 27.5% (p= 0.083) in the first week. The decrease rate was observed to have increased to 62.5% (p = 0.001) in the second week, 57.5% (p = 0.002) in the fourth week, and 42.5% (p = 0.025) in the eighth week. The decrease rate was observed to have regressed to 32.5% in the twelfth week but still statistically significant (p = 0.048). Maximum effect was reached in the second and fourth weeks. Although -A had an eminent effect for 8 weeks, its effect was continued in a statistically significant level till the twelfth week