Help with facial pain. What can cause it? Face looks ok.

Many Causes. There are many causes of facial pain. It's important to get a thorough examination to determine proper diagnosis and appropriate treatment.
Many things. As many causes as there are diseases. Start with ENT or oral surgery exam. Treatment follows diagnosis.
Maybe lots of things. Fcial pain can be referred from another part of your body to the face, i.e. Heart attack. You may have neuralgia type pain which is the nerve itself acting up due to some irritant or inflammation. Best to get checked out by a dentist or neurologist.
Lots of things... ...Can cause facial pain, for a sinus infection to shingles (which sometimes occurs without the rash) to nerve disturbances to other kinds of infections. Your doctor will be able to narrow down the differential for you.