My baby sneezes everytime she sees too much sunlight. Why is that?

Photic sneezes are not uncommon, so please don't be alarmed. It is not harmful to your child and does not lead to any colds or infections. If you baby is sneezing in episodes, this is expected and is nothing to worry about. In the simplest of explanations, the ACHOO (Autosomal-dominant Compelling Helio-Ophthalmic Outburst) syndrome is caused by a confusion of body signals. It's not uncommon, it's not a threat to your child so please don't worry. http://www.scientificamerican.com/article/looking-at-the-sun-can-trigger-a-sneeze/