3 Common Causes of Sinus Headaches
Infections
One of the most common causes of sinus headaches is sinusitis. It is a viral infection that inflames the paranasal sinuses, which generate needed mucus for the proper operation of nasal passages. When the body catches the virus, the nose responds by generating more mucus. This increases sinus pressure and causes a headache. In addition to viruses, sinus headaches can also be caused by an autoimmune reaction, allergies, fungi, or bacteria. The infection can be either chronic or acute. In mild cases, sinusitis would go away quickly without medical intervention. [4]
