Two general conditions to consider when there is a ringing sound in the ear from chewing are foreign bodies in the external ear canal and TMJ disorders. In the first case, the possible factors for foreign bodies in the external ear canal are other foreign bodies in the external ear canal or cerumen or biological foreign bodies in the external ear canal. In this case, you need to go to the ENT department of the hospital and let the doctor check the condition of the external ear canal. If there is a foreign body, you can take it out directly, or if there is cerumen, you can take it out directly, or if it is inconvenient to take it out, you can use saline to rinse out the foreign body and cerumen directly. In the second case of TMJ disorder, you should pay attention to not eating too hard food, relax your mind, and apply heat to the TMJ area. If it is still not good after repeated adjustments mentioned above, you can go to the stomatology department of the hospital to check the local situation and use drugs for treatment if necessary.