Eli5 why, if we feel like we need to sneeze, looking directly into a bright light helps?

Question

Eli5 why, if we feel like we need to sneeze, looking directly into a bright light helps?

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Answer 1

This is an interesting question because one of the few things that makes me sneeze is walking out into the brightest light of them all, the sun. Would you experience the opposite (i.e., walking out on a sunny day causes you to *not* sneeze?)