Pain in the left parotid area when opening the mouth and biting may be due to wisdom tooth pericoronitis, parotitis or left temporomandibular joint disorder disease, which requires medication or surgical treatment for the cause.
1. Wisdom teeth pericoronitis: parotid, also known as the parotid area of the cheek, when wisdom teeth are blocked, the surrounding gums are red, swollen and painful, which can seriously cause buccal space infection. Clinically, the general use of hydrogen peroxide and saline rinse gums around the wisdom teeth, local povidone-iodine medication, the emergence of abscesses require surgical incision and drainage.
2. Mumps: A decrease in immunity may lead to bacterial and viral infections that cause mumps, swelling and pain in the cheek area, which is treated with the antibacterial drug penicillin or the antiviral drug acyclovir.
3. Temporomandibular joint disorder: When temporomandibular joint disorder occurs, it may trigger pain in the pre-auricular area by pressing, pain in opening and closing the mouth and difficulty in opening, according to the severity of the disease, consider moist and hot compresses physiotherapy or oral diclofenac sodium tablets.
Any pain in the cheek area is recommended to be checked and treated by a doctor, and medication should be prescribed by a doctor.