yes he is right it happens due to pollution or smoking. if u dont smoke no need to worry. since body is throwing out those pollutants by means of mucous entrapping its a protection mechanism. well u shud avoid these pollutants as much as possible.
Next Steps
wear mask wen ur out on road. hv a nice ventilation at ur home. go fr morning walk. do lil yoga breathing exercise. it shud help.
Answered2018-04-15 03:43:20
Let others know if this answer was helpful