The right side of the back of the neck has a tendon pain may have the following conditions: 1, cervical spondylosis, if there is a history of cervical spondylosis, due to factors such as playing with the phone with the head down or cold, may make the cervical spondylosis attack, which leads to neck pain, stiffness, and may also have stretching-like radiating pain. Treatment can be given to Furtalin oral pain relief, Flurbiprofen Babu cream topical pain relief, or safflower oil application to invigorate blood stasis and relieve pain. 2, fallen pillow, if the night sleep posture is poor or pillow is too high, may lead to the right side of the neck tendon spasm, which leads to severe pain, usually rest for a few days can be self-relieved, can also be given small acupuncture or massage techniques to help relieve pain. 3, fasciitis, if the The right side of the neck muscles are often strained or cold, which may produce sterile inflammation, thus leading to cramping pain in the right side of the neck, treatment can be given to Cilobal for pain relief and Cefaclor capsules for anti-inflammatory.