reason for sneezingWhat is the reason for sneezing which starts on waking up and progresses through the day?

Either you are allergic to something, or you are coming down with a cold. Sneezing is usually the first sign of a cold. Check out this website.

this is due to sudden change of air.Like from bedroom getting out first thing areason for sneezingnd going to bath room.This sudden change will trigger to sneeze.
Or stepping out of the door to out side.Best thing is when getting out of be stay few minutes inside when out of bed then hold cover your nose with hankerchiereason for sneezingf for few minutes.
Do not use any room spray or any body sprays.This is most likely to be the cause or gel or hairoil etc.
Drink plenty of water and take multivitaminc with 1g of vitamin c soluble in water.
this wll help.