The common cause of pain in the right side of the face is mainly trigeminal nerve pain, but it is also necessary to exclude mumps or due to periodontal disease, and some of the presence of temporomandibular joint disorders can also cause facial pain. Trigeminal nerve pain is widespread and includes mainly the face and eyes, but also the head. The pain is intense and unbearable, and is aggravated by cold or staying up late. However, if the pain is due to periodontal disease, the pain is more pronounced and persistent with swelling on the face, it needs to be examined and treated in the stomatology department of a second-rate hospital or higher, and antibiotics need to be applied. However, if the pain is caused by trigeminal nerve pain, it is recommended to nourish the nerve and apply pain medication to improve the current symptoms, if necessary, you can also cooperate with acupuncture to improve the pain.