Hello,
Your throbbing pain suggests that the nerves of your tooth are involved. It may require a root canal treatment. Ear pressure and jaw pain can either be due to the abscess or infection caused by the involved tooth since the nerve supply of the lower tooth goes upto the jaws, ear and head. If the cause of your jaw pain is independent of the infection, you might simultaneously have a jaw joint disorder.
Next Steps
Please visit to get a clinical examination and an x-ray done. If adequate structure of the tooth is available, Dentist will suggest you to go for a root canal treatment. Also get your Jaw joint evaluation done for any existing TMJ issues.