What causes the little tickle when you have to sneeze?

Question

Just wondering.

Answer 1

I just finished a biology course and a sneeze is caused by an irritation of the lining of the nasal cavity . And just for a fun fact, also when you sneeze your heat stops momentarily.

Answer 2

there's a lot of small hairs in the nasal canals to catch things that fly by. the tickling would be a lot like if something brushed the hairs on the back of your neck.

If the hairs catch something big enough to really make them tickle, you will sneeze to try and blow it.

The bigger the particle it is, the more it bends the hair producing a stronger tickling feeling -- so its like not only can your nose tell you something's there, but it can say how big it is.

I actually just sneezed right there at the end.

Answer 3

There is a foreign body irritating the cilia, or tiny hairs, in your nasal cavity. The body's natural reaction is to remove it, and the "tickle" is the hairs and nerves beginning to react.

Answer 4

Its a reaction. :) I have no idea why its caused tho maybe just for fun ??

Answer 5

Something foreign has entered your nose and is irritating it.

Answer 6

a nerve in your body.