Table 3.4 showed that the prevalence of rhinitis in grade 6 pupils (aged 11 years) was 14.05%; in 7, 8 and 9 grades students were 15, 37; 15.70 and 16.45%, although the rate of allergic rhinitis tends to increase with age, but the difference in the prevalence of allergic rhinitis among ages was not statistically significant with p> 0.05.