Why does my left side of my head, ear and jaw hurt every day i been having this pain for a while especialy at nigth?

There are many: Possible causes. One is dental related and includes possible jaw joint (TMJ) issues, chewing muscle issues, and the way your teeth contact. See your pcp and your dentist. I highly recommend a dentist that has trained with the pankey institute or the peter dawson center if you are indeed dealing w jaw/jaw muscle/bite problems. Thorough exam is extremely important. Good luck !

TMJ or infection: There are a number of possible reasons your jaw pain is localized to this area however the most frequent causes are usually one of two problems. In your age group pain in this area is frequently related to an erupting wisdom tooth either causing infection or irritation of the area you described. Temporomandibular joint disorders also are a possible cause.

TMJ: Sounds like TMJ. See a specialist. Any dentist can be a TMJ expert with the proper training and experience. Most commonly, oral surgeons, prosthodontists, and orofacial pain specialists. Ask your MD, your dentist and your dental society for referrals.

TMJ TMD: Temporo-mandibular syndrome is the second most frequent cause of orofacial pain after dental pain. Proper diagnosis is the key to successful treatment. See Orofacial Pain practitioner for a consultation and treatment options and to prevent future complications.