A sneeze is a sudden, forceful, involuntary burst of air through the nose and mouth.
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Sneezing is caused by irritation to the mucous membranes of the nose or throat. It can be very bothersome, but is generally not a sign of a serious problem.
Adkinson NF Jr. Middleton’s Allergy: Principles and Practice. 6th ed. Philadelphia, Pa: Mosby; 2003.
Rakel RE. Textbook of Family Medicine. 7th ed. Philadelphia, Pa: WB Saunders; 2007.