Why do i sneeze 10-15 times twice a day?

Possible allergy: Can't say for sure, but it's possible you have allergies.

Allergies: For me, I believe it's allergies. Often, I feel like a punching bag by the end - but otherwise, it's not too bad. It's dangerous when it happens while driving, but that's been rare. You might get relief from OTC antihistamines or see an allergist for a full eval and treatment. Gesundheit!