profession. It is known by various different names: dental orthopedics, dentofacial orthopedics, cranio-mandibular orthopedics, and jaw orthopedics.
Sinus infections often follow a cold and cause pain and pressure in your head and face. Sinusitis can be either acute (sudden) or chronic (long-term). With chronic sinusitis, the infection or inflammation does not completely go away for 12 weeks or more.
As for the antibiotics, you should start feeling a change within 24-48 hours. However, with a sinus infection, this typically means a day or two of draining sinuses, which can make you feel worse. During this time you will probably be blowing your nose almost constantly, but you should see a decrease in any fever.