Hence it could be Trigeminal neuralgia,
abscess in
tooth, exposed root canal, internal ear
infection, maxillary sinusitis, TMJ, migraine, herpes (recurrent) without rash or fibromyalgia localized to face.
It is difficult to comment beyond this at this stage. Do consult your doctor.
Hope this helps. Please let me know if there is any thing else and do keep me posted. Take care!