This situation belongs to cheek swelling and pain and oral pain, which is mostly caused by excessive internal heat. Dry climate, reduced drinking water, physical fatigue, too spicy and greasy diet and many other conditions can be induced, but this situation is not a big problem.

Suggestion:

Patients can take some antipyretic and anti-inflammatory drugs. Drink plenty of water, eat more fruits and vegetables, pay attention to rest, avoid spicy food and maintain oral hygiene.