What should I do if my left toothache is causing pain in my cheek?

When toothache on the left side is accompanied by pain in the cheek, it may be caused by various factors, including improper diet, pulpitis, or apical periodontitis. It is advisable to avoid consuming irritating or hard foods to reduce stimulation to the teeth and cheek. If the pain is mild, applying a cold compress with an ice pack wrapped in a clean towel may help alleviate pain and swelling. However, if the pain persists or worsens, prompt medical attention is recommended so that a doctor can accurately diagnose the underlying cause. Conditions such as pulpitis and apical periodontitis may require treatments like root canal therapy to clean, disinfect, and fill the affected tooth's root canal, thereby relieving oral discomfort. During treatment, maintaining good oral hygiene is essential—brush teeth regularly in the morning and evening, rinse the mouth after meals to minimize bacterial growth. Additionally, follow the prescribed medication regimen and attend regular check-ups at the hospital to ensure the condition is properly managed and treated.