How does a dr. know if you have a sinus infection? will antibiotics help if you do?

Physical exam: A good history and exam is usually sufficient. Looking into the nose with a telescope may help (done by an ent). A ct scan can be used as well. Typical symptoms: headache/facial pain/pressure; nasal stuffiness; purulent nasal drainage; sore throat; cough; ear pain; tooth pain; feeling run down. 3-4 symptoms above or "cold like symptoms" that have gone beyond a week.. Likely a sinus infection.

Sinus Infection: The best way to know if an individual has a sinus infection is by listening to symptoms, then determining how long these symptoms have been present. Most patients do not have any signs of infection on exam, but usually do have swollen nasal membranes, and may have tenderness upon tapping over the sinuses. Symptoms include: nasal congestion, drainage, facial pressure, and sometimes fever.