thanks for your query.
1)matatop contains a
steroid that acts as an immunomodulator and antiinflammatory agent that decreases nasal stuffiness and secretions,thus clearing nasal passages.
2)the second part depends on how long you have this problem.if it started recently,you need not worry.it can be cleared with drugs.but if it is for long,it may be due to problems like deviated
nasal septum or nasal polyps,which need an detailed ENT examination,followed by surgery if needed.meanehile,just note the following....
a)avoid walking/bike ride in
cold climat
b)avoid dusty atmosphere as far as poosible
c)always use helmet with front cover on bike
d)make your bed room dust free and avoid direct fan flow on face
e)clean your air conditioner filter regularly.
hope you find this information usefull.thank you.