Pain in the left cheek bite position may be caused by long-term use of the left side of the teeth for chewing. It is recommended to change bad habits and reduce the burden on the muscles so as to relieve the painful symptoms. It may also be caused by mumps, temporomandibular joint disorder, occlusal fasciitis and other reasons. Depending on the specific cause, follow medical advice to choose physical therapy, medication and other ways to relieve: 1. Lateral chewing: more or less no special treatment is needed to make the left side of the jaw fully rest, avoid strain on the left side of the bite muscle or jaw joint activities, change bad chewing habits, keep both sides of the teeth alternately chewing to relieve the symptoms of pain in the left cheek bite position; 2. Mumps: can lead to swelling of one or both side of the parotid gland and pain, involving the position of the bite muscle, and some patients may also have fever, headache, lack of appetite and other manifestations. The mumps can be treated with medication and surgery to relieve the pain. The acute suppurative mumps can be treated with non-steroidal anti-inflammatory drugs such as aspirin and acetaminophen for anti-inflammatory treatment or incision and drainage under medical supervision. The symptoms of pain in the left cheek bite muscle can be relieved by using adrenocorticosteroid drugs such as tretinoin and dexamethasone to relieve the pain. 3. temporomandibular joint disorders: temporomandibular joint disorders caused by trauma, malocclusion, gnawing on hard objects, etc. can be relieved by using pain-relieving drugs such as ibuprofen under the guidance of a doctor, and can be supplemented by physical therapy such as local hot compresses and microwaves. Temporomandibular joint disorders caused by malocclusion also require occlusal correction or repair. Patients with serious symptoms can be treated with local injection closure in the temporomandibular joint, or under the guidance of a doctor, topical Chinese herbal medicine can be used to relieve the pain of the left cheekbone bite muscle position; 4. After the discovery of the disease, local hot compresses can be applied to accelerate blood circulation and relieve the pain symptoms; or physical therapy such as infrared, microwave, acupuncture, massage and other Chinese medicine treatment can be carried out in the hospital after consultation. For severe pain, pain-relieving drugs and anti-inflammatory drugs can be used under the guidance of a doctor. In addition, if there is gum inflammation or root inflammation in the oral cavity, it may also cause this condition, mostly accompanied by gum swelling and pain, mouth opening restrictions and other discomfort. During the recovery period, it is recommended to eat light and soft food, avoid spicy and stimulating food, eat more fresh vegetables and fruits, and drink more water to help recover as soon as possible.