“Achoo syndrome” also known as photic sneeze reflex or photic sneeze response, is a condition in which people experience sneezing or other nasal symptoms when exposed to bright light. This reaction is an involuntary response that occurs in some people when they move from a dark environment into a brightly lit one or when they look directly at a bright light.
The cause of Achoo syndrome is not fully understood, but it is believed to be related to a genetic predisposition. The condition is more common in people with a family history of the disorder. It is thought to be caused by a misfiring of the trigeminal nerve, which is responsible for sensation in the face and nose, and the optic nerve, which is responsible for vision.
While Achoo syndrome is generally harmless, it can be disruptive to daily life if it leads to frequent sneezing or other nasal symptoms. Treatment options may include avoiding bright light or wearing sunglasses when exposed to it, using over-the-counter nasal decongestants or antihistamines, or in severe cases, prescription medications or immunotherapy. It is important to speak with a healthcare provider if symptoms persist or are severe.
