Step 4: Read and complete the decision guide to learn more about your symptoms.
Sinus infections can cause a headache. However, the pain of a sinus infection is usually in the front and tends to be localized to one side of the forehead, around the nose or behind one or both cheeks. The pain from a sinus infection often gets worse when you bend forward. Also mucus from your nose changes color to yellow, green or reddish-brown.
Do your symptoms suggest a sinus infection?