NSAIDs or acetaminophen
1st line therapy
Trigger point injections may be useful for trapezius muscle spasm
Opioids
Appropriate for moderate-severe pain but only for limited duration
Muscle relaxants
Efficacy appears equal to NSAIDs
Diazepam 5-10mg PO q6-8hr OR methocarbamol 1000-1500mg PO QID
1st line therapy
Appropriate for moderate-severe pain but only for limited duration
Efficacy appears equal to NSAIDs
Diazepam 5-10mg PO q6-8hr OR methocarbamol 1000-1500mg PO QID
Neck pain
Musculoskeletal
Chest pain 
Torticollis
Chest wall pain
Dystonic reaction
Sore throat
Cervical spondylosis