<s>[INST] I have a sore upper jaw left side of my cheek. My teeth hurt. The roof of my mouth hurts, again only on one side, two days ago I had sore teeth, but not today at all. I ve had a headache for three days but not today and today I noticed my nostrisl on that side would start running from time to to. I m thinking a sinus infection. Please help. Carmen [/INST] HI, thanks for using Chat Doctor It is definitely possible that you have a sinus infection involving the left side of the face. Most infections are viral though bacterial and less commonly, fungal infections are possible and occur as well. A bacterial infection would cause a prolonged fever along with a smelly discharge. Treatment for a sinus infection involves the use of anti histamines and decongestants (both oral and topical) e.g. Zyrtec d, Allegra d, carnitine d, Ben Chat Doctor. Example of topical decongestants include striving and normal saline painkiller such as ibuprofen or paracetamol can be used to help the headache. If the symptoms do not improve, or they are severe then you should see your doctor for assistance hope this helps </s>