The pain in the cheeks in the morning may be related to wisdom teeth inflammation, viral parotitis, trigeminal neuralgia and other reasons. 1. Inflammation of wisdom teeth: Wisdom teeth mostly erupt in adulthood, such as improper cleaning, or the emergence of blocked teeth, can lead to inflammation of wisdom teeth, resulting in cavities, lymph node swelling caused by parotid pain, once the pain occurs, need to take oral antibiotics under the guidance of the doctor to eliminate the inflammation, the inflammation dissipates, according to the situation of the diseased teeth can be extracted. 2. Viral mumps: mumps is an infectious disease caused by viral infection, which can be transmitted through droplet transmission. Typical symptoms are characterized by parotid swelling, redness, and pain, which affects the cheeks and behind the ears, and the pain is difficult to be relieved, and most of the patients are treated with antiviral therapy, such as acyclovir, ribavirin, and other intravenous fluids, which are highly effective. Pay attention to isolation until the symptoms are completely improved. 3. Trigeminal neuralgia: Sudden pain in the trigeminal nerve of the face under stimulation, relieved in a few seconds or minutes, with radiating pain throughout the cheeks and eyes, which cannot be artificially controlled. It is obvious when eating or washing the face and touching, with the development of time, the range of persistent pain grows. It can be relieved by medication under doctor’s supervision, such as methylcobalamin tablets and vitamin B12 tablets to improve. Surgery may be performed if the results are not satisfactory. The medication should be used strictly under the doctor’s guidance, regular follow-up in the hospital, no unauthorized changes in drug dosage, and if other symptoms occur, you should seek medical attention in a timely manner.