2. The lateral pterygoid muscle can be blocked with 0.25% ~ 0.5% procaine 3 ~ 5ml. The puncture point is at the midpoint of sigmoid notch, and the needle is inserted vertically, with a depth of 2.5 ~ 3 cm, and the drug is injected when there is no blood in the back suction. Commonly used in patients with big mouth.

3. Chloroethane spray combined with massage can relieve masticatory muscle spasm. When spraying chloroethane, it should be atomized, sprayed intermittently and massaged to prevent frostbite. And pay attention to protect eyes and ears, away from fire.

4. Acupoints: Shimonoseki, Tinggong, Cheek Car, Hegu, Wind and Sun.

5. Ultrashort wave, iontophoresis, electrical stimulation, magnetic therapy and other local physiotherapy have certain effects.

At the same time of treatment, we should correct bad habits (such as unilateral chewing) and prevent excessive mouth opening.