I have been on medication for a sinus infection ( augmentin) finished 10 days but now i'm in severe pain in my jaw, simple and cheek bone area. help!

Toothache: Is the most common cause for orofacial pain. Sinus infection can cause a toothache — especially in the upper rear teeth, which are close to the sinuses. If you have a persistent jaw pain, first consult your dentist for an exam. The dentist needs to rule out dental causes for the pain, such as periodontal disease or dental abscesses/pulpitis.