Suggest Medication For Sneezing & Chronic Sinusitis

I am 25 years old girl. i am faceing the problem of snezzing and cronic synusites since 7 to

8 years. i had taken many ayurvedic medicines such as talisati churna, sitopalati churns,

nag guti. this aries mostly in rainy season or when there is more cold. this occres early in the morning.

I have also taken some of alopathic medicines such as cirtizin, L citrizin at about 20 days, but not proper result occurs.

now since 15 days i am takeing the tab L MONTUS each at night. now the problem solve about 50%. plz suggest me if there is any side effect .

nose blocking also occurs.