Comrade Dagang has been suffering from a bit of pain in his face because of the “air conditioning” in the hot weather. Because of the facial pain, he dared not eat or open his mouth wide, and he went to several doctors, ruling out “toothache, neuralgia, and temporomandibular arthritis”. After the MDT consultation, he was diagnosed with “masticatory muscle fasciitis”. Fasciitis of the masticatory muscles is a relatively rare form of facial pain. Fasciitis of other muscles throughout the body is more common, and overseas epidemiologic studies have found that 93% of patients with outpatient pain are associated with myofasciitis. Myofasciitis, a non-infectious inflammatory reaction of skeletal muscle. Its basic pathology is myofascia and muscle tissue edema, exudation and fibrous changes, resulting in a series of clinical symptoms. It is a non-specific change in the body’s rich white fibrous tissues, such as fascia, myofascia, ligaments, tendons, tendon sheaths, periosteum, and subcutaneous tissues. Myofascial pain is a common clinical condition that is often overlooked or misdiagnosed. Etiology The causes of myofasciitis are multi-faceted and may be related to the following factors: 1. Stimulation by humidity and cold is one of the most common causes. Wet and cold can cause muscle vasoconstriction, ischemia, and edema resulting in localized fibrous plasma exudation, and ultimately fibrous fibrositis. Prolonged blowing of air conditioning or electric fan in summer is also often one of the triggers. 2, muscle tension, strains, some special position on the specific muscle chronic injury and other chronic strain for its another important factor in the development of other such as viral infections, rheumatism muscle metabolic reaction are triggers 3, the body lacks calcium, iron, potassium, vitamin C, B1, B6, B12, etc. also play a role in the occurrence of myofasciitis. 4, stroke paralysis, physical deformity, etc. can also lead to chronic strain on the relevant muscles of the body, thus causing pain. 5, in addition, chronic infections, depression, sleep disorders, hypothyroidism, hyperuricemia and other diseases also often complicate myofasciitis. Clinical Symptoms Myofasciitis can cause localized pain, muscle tightness, stiffness, limitation of movement, voluntary twitching and other manifestations, which makes people very uncomfortable and is the reason why many people take leave from work. There is no difference in the prevalence of myofasciitis between men and women, nor is there a clear age limit, even babies can get this disease. Of course, the possibility of developing myofasciitis gradually increases with age, and middle-aged and elderly people have therefore become the main force of this disease. Clinical studies have found that sedentary people are more prone to this disease than those who exercise regularly, and this is especially true for those who sit hunched over a computer all day. In the oral and maxillofacial region, the most common cumulative muscles include “external pterygoid, internal pterygoid, temporalis, occluder, sternocleidomastoid, occipitalis major muscle” and other muscles. The main manifestation is “severe pain” in localized muscles, which is paroxysmal sharp pain with obvious limited pressure, and the patient’s pain can be reproduced by pinprick or pressure on the trigger point, and sometimes there is distal sensory transmission of pain. Some have radiating pain. Some patients are significantly associated with opening and closing the mouth or chewing movements. Diagnosis 1, history: localized pain in facial muscles, muscle spasm and dyskinesia, pain associated with chewing and other opening and closing of the mouth. 2, pain characteristics: pain often in the early morning attack, activity, hot compresses reduce or disappear. 3.Pressure pain: there is obvious limited pressure pain. Needling or pressing the excitation point can reproduce the patient’s pain, and sometimes distal sensory transmission pain occurs. 4, experimental diagnosis: the pain disappears after injection with needle prick or lidocaine pain point. When needling or injecting the provocative pain point, localized convulsive reaction may occur. 5.Assistant examination: there is no abnormality in imaging examination. Laboratory tests: anti-“O” or blood sedimentation is normal or slightly high. Treatment There are many ways to diagnose and treat facial myofascial pain, as follows: 1, physical therapy: for mild patients, relieve the cause of the disease, local physical therapy and hot compresses, can achieve better results. 2, injection therapy: the use of 2% of the total amount of myofascial pain in the face. 2, injection therapy: using 2% lidocaine + VitB12 for “pain injection”, five times a course of treatment, every three to five days. 3.Three oxygen treatment: using the pain point “three oxygen injection”, or “big self-blood” treatment program 4.Acupuncture treatment: once a day, five to seven consecutive days. Pulse radiofrequency treatment: using radiofrequency therapy instrument, “pain point radiofrequency treatment”, 420 seconds each time. There is no specific method for the treatment of myofasciitis, and the effect of the existing methods is also uncertain! Some patients are cured after one course of treatment; some patients are cured after several courses of treatment, but there is no effect; some patients are cured on their own after a few days without any treatment; and some patients are cured for a few months, but it comes back. “Cure” is the purpose of treatment, but clinically the treatment may not always bring “cure”. But in general, the effect of treatment should be better than no treatment, and the wish of doctors and patients is the same: “Get well soon and never relapse”!