Back and neck pain is widespread in the population. Preferably, patients of working age are sick, which leads to serious economic losses. The transition of pain from acute to chronic increases financial costs, so effective treatment of back pain is an important medical, social and economic problem. Musculoskeletal pain (MSP) prevails among all types of back pain. The source of the MSP can be various structures of the musculoskeletal system: bones, joints, muscles, fascia, tendons, ligaments, intervertebral discs. The provoking factors for the development of the MSP are static and dynamic overloads arising from physical work, long stay in a fixed posture, unprepared movements, hypothermia, vibrations. The leading diagnostic method for the MSP is a physical research of a patient which includes a detailed collection of complaints and anamnesis, inspection in statics and dynamics, carrying out global and special tests, neuroorthopedic and neurological research. In most cases, the analysis of the results obtained allows you to set a clinical diagnosis without appointing additional research methods. Two cases of acute MSP with different localization, clinical manifestations and flow are offered to the discussion. In the first case, the process was localized in the muscles of the law back. In the second patient, the muscular tonic syndrome developed in the muscles of the neck and shoulder belt and was supported by functional blockades of the vertebral motor segments. For the treatment of both patients, NSAID, muscle relaxant, glucocorticoid, as well as non-drug therapy methods were used. For local injection therapy, a drug group of glucocorticoids was used, having a sodium phosphate and betamethazone dipropionate as part of the sodium betamethasone. The combination of two betamethazone salts provides both the rapid and prolonged effect of the drug, which makes it reasonable to use it with acute musculoskeletal pain.