What causes pain on one side of the face?

Generally, pain on one side of the face may be caused by external impact, excessive chewing, trigeminal neuralgia, pulpitis, temporomandibular joint disorder syndrome, and other reasons. If discomfort occurs, it is recommended to seek timely medical evaluation and treatment at a正规 hospital. Specific analysis is as follows:

1. External impact: When one side of the face suffers from collision or compression, facial soft tissues may be damaged and capillaries ruptured, leading to pain. Apply cold compresses within the first 48 hours after injury to control bleeding, then switch to warm compresses after 48 hours to reduce swelling. Avoid pressing on the injured area.

2. Excessive chewing: Long-term use of one side of the teeth to chew hard foods can cause facial muscle fatigue and uneven stress on the temporomandibular joint, resulting in pain. Switch to chewing evenly on both sides, avoid hard foods such as nuts, and allow facial muscles adequate rest.

3. Trigeminal neuralgia: Stimulation of the trigeminal nerve causes paroxysmal severe pain that radiates along the distribution of facial nerves. Medications such as carbamazepine tablets, oxcarbazepine tablets, or gabapentin capsules may be taken under medical guidance, with acupuncture used as adjunctive therapy to relieve symptoms.

4. Pulpitis: Bacterial infection of the dental pulp leads to inflammation, causing pain that radiates to one side of the face and worsens with hot or cold stimuli. Medications such as metronidazole tablets, cefuroxime axetil tablets, or ibuprofen tablets may be taken as prescribed. Root canal treatment is required to remove the infected pulp.

5. Temporomandibular joint disorder syndrome: Abnormalities or overuse of the joint structure lead to joint dysfunction, causing pain on one side of the face accompanied by difficulty opening the mouth. Medications such as enteric-coated diclofenac sodium tablets, glucosamine hydrochloride capsules, or chondroitin sulfate tablets may be used as directed. In severe cases, temporomandibular joint arthroscopic surgery may be necessary.

In daily life, take care to protect the face from external impacts; develop the habit of chewing on both sides to reduce strain on facial muscles; maintain good oral hygiene and undergo regular dental checkups; seek prompt medical attention for sudden, severe pain to identify the underlying cause and receive appropriate treatment.