Sudden tendon pain on the right side of the neck: 1. If there is a combination of numbness and radiating pain in the arm area, or dizziness and headache, consider the possible existence of cervical spondylosis, which can lead to local muscle spasm and pain in the neck. 2. In addition to the symptoms of sudden pain in the right side of the tendon, it may also be accompanied by the pain caused by the head tilt, rotation, head down and other symptoms of restricted neck activities. If this situation occurs, patients need to avoid strenuous activities of the neck, avoid sudden head turning, can use some analgesic, blood circulation and blood stasis drugs to assist treatment, with massage, appropriate heat compress and other treatment, can play a very good effect.