Allergies
If you have allergies, the risk of having a sinus headache tends to be high. This is because some triggers, such as dander, dust, chemicals, and similar substances, would block your nasal passage. The blockage prevents mucus from preventing your sinus from function as usual. As a result, it triggers some parts of the brain and causes a sinus headache. To reduce the risk, it is important to stay away from some common triggers in the environment. Consider purchasing an air purifier or using an advanced air filter for your AC system to keep these components from entering your house. [9]
