What is a common symptom of sinus infections?

Persistent headaches are a common symptom of sinus infections due to the inflammation and congestion affecting the sinus cavities. When the sinuses become inflamed, pressure builds up due to blockage, which can create a sensation of pain or pressure in the forehead, cheeks, or around the eyes, often leading to headaches. This is specifically referred to as sinusitis headaches and can also be exacerbated by activities such as bending over or sudden movements.

While hearing loss, facial swelling, and impaired vision can occur in more severe cases of sinus infections or in certain specific conditions, they are not considered hallmark symptoms of a typical sinus infection. Hearing loss may arise if there is significant congestion affecting the Eustachian tubes, facial swelling would usually indicate a more advanced or specific infection, and impaired vision is rare and usually associated with complications that extend beyond a standard sinus infection. Therefore, persistent headaches are recognized as a classic and common symptom experienced during sinusitis.