Study objective:

• To demonstrate, in patients with myofascial pain syndrome in cervical region, the degree of efficacy of thiocolchicoside ointment administered to trigger point regions compared with the trigger point injection.

Inclusion Criteria:

• Submitted to clinic with a complaint of head and neck pain
• Be diagnosed as having myofascial pain syndrome by determining the active trigger points in trapezius and/or interscapular region according to criteria of Simons and Travel
• Have 1 to 8 active trigger point(s)

Exclusion Criteria:

• Have evident cervical discopathy and signs of osteoarthritis
• Have bleeding diathesis or using anticoagulant medication which hinders injection
• Have known malignity, being used steroids, have immunodepressive disorders and/or being taken immunodepressive drugs
• Be pregnant or have the possibility of being pregnant or not being used a regular contraceptive method
• Have known allergic reaction against Thiocolchicoside