<http://schema.org/description>
"Throw some germy surfaces into a mix of dry air and a pressurized cabin, and you have a recipe for sinus misery."^^<http://www.w3.org/2001/XMLSchema#string>
<http://health.howstuffworks.com/diseases-conditions/headache/why-do-sinus-problems-get-worse-during-air-travel2.htm>