The human body has over six hundred muscles, and since they are needed for every movement you make, it's uncomfortable when a group of your muscles cause pain. Some muscle pain is minor, but some people experience severe pain, tenderness, and inflammation. Many have muscular pain as a result of an accident or injury, but it's also possible to experience muscle pain due to some illnesses or medical conditions. Doctors will typically first recommend the application of heat and cold, as well as simple stretching exercises, but if that does not provide relief, you may require a muscle relaxant. Muscle Relaxant drugs is used to treat increased muscle spasticity associate with central nervous system disorders.