Odors
Many people tend to have a sinus headache when they sense some distinctive and strong odors. These include gas, paint products, perfume, solvents, and many other chemicals. The components in those substances would irritate your nasal passages and airways, which eventually triggers some brain areas to send signals that cause a sinus headache. This cause is more common in those people who work in the factory or construction site where they have to be exposed to a lot of substances. In these cases, following the safety rules and wearing protective gear can be helpful. [12]
