Heat Therapy
Heat therapy is much similar to a cold compress. But in this, there are heat pads instead of ice pads. It can help in muscle pain and arthritis in the shoulder.
Muscle Relaxants
Muscle relaxants help to treat pain if you have muscle tension or spasms. Muscle relaxants can cause drowsiness, so please avoid it during driving or operating some kind of machine.
Rest and activity modification:
In severe kind of pain, problems try to rest your body and avoid such activities that are harmful to the shoulder pain and cause problems for yourself. Move your shoulder gently because it will help to keep your joints flexible and shoulder muscles secure.