Taking care of the most obvious problem is the first thing. If you have an infeced tooth, that needs to be taken care of.
I always ask my patient this .. if there was a cut on your hand and was oozin pus and infection by products, would you be waiting to see a Dr. to fix things? a better question, would you be on the net asking what to do? No.. probably, ou would have been at a doctor fixing and irradicating the infection. So why do we put up with dental infections? because we don't see them readily?
Get the infection taken care of, and then find a TMJ doctor, you could have dizzines ffrom poor positioning of your lower jaw..
All the best.
Seeing a medical professional is advised. If there is no help from MD, seeing a tmj specialist is probably the next choice.