Sinus Infection vs. Cold: How to Tell the Difference

It’s easy to confuse a sinus infection with a common cold—after all, both come with congestion, runny nose, and fatigue. However, there are some key differences that can help you determine which one you’re dealing with.

A cold typically starts with a sore throat, sneezing, and a runny nose. Symptoms are mild to moderate and usually clear up within 7–10 days. Mucus may be clear or slightly discolored, and you might have a low-grade fever.

A sinus infection (sinusitis), on the other hand, often follows a cold but lasts longer and can be more intense. Key signs include facial pain or pressure (especially around the eyes and forehead), thick yellow or green nasal discharge, postnasal drip, and a reduced sense of smell. You may also feel tooth pain or tenderness in the upper jaw.

If symptoms persist for more than 10 days, worsen after initially improving, or include a high fever, it’s more likely to be a sinus infection. Knowing the difference can help you choose the right treatment and avoid unnecessary medications.