If sinus ducts are swollen due to an upper respiratory infection, what condition may occur?

When sinus ducts are swollen due to an upper respiratory infection, this can lead to sinus blockage. The sinus cavities are connected to the nasal passages, and when the ducts are swollen, proper drainage can be impaired. This blockage can cause pressure to build up in the sinuses, potentially resulting in additional symptoms such as pain or discomfort in the facial area.

Sinus blockage is a direct consequence of the swelling, as it inhibits the normal flow of mucus and air, leading to an accumulation of mucus, which can also become infected. While blocked ears, earaches, and headaches are common associated symptoms of sinus congestion, the most direct answer to the condition resulting from swollen ducts is indeed sinus blockage.