Right arm and shoulder pain may be caused by cold, poor posture, lactic acid accumulation and other physiological factors, or it may be caused by tendonitis, frozen shoulder, rotator cuff injury, cervical spondylosis and other diseases, according to the different causes of targeted treatment, the specific should follow the doctor’s instructions. 1. Physiological factors: due to cold, improper posture caused by compression, or strenuous exercise leading to lactic acid buildup, through rest and warmth and improve posture, can be relieved on their own. 2. Tendonitis: common biceps long head tendonitis, fasciitis, etc., should pay attention to rest and warmth, local physical therapy, severe pain can be oral ibuprofen extended-release capsules, celecoxib tablets, etc., severe pain in the local closed injections, can achieve certain results. 3. Frozen shoulder: pay attention to keep warm, carry out joint self-exercise, prevent adhesion, can also be used with acupuncture, massage massage for adjuvant therapy, closed injection and small needle can also achieve certain results. 4. Rotator cuff injury: mild is mainly rest, reduce activities, physical therapy and other conservative treatment, serious tendon injury, need to take surgery to repair. 5. Cervical spondylosis: to maintain a correct sitting posture, avoid prolonged low head, can be given traction, physical therapy, with celecoxib tablets, meloxicam capsules and other drugs for auxiliary treatment. There are many reasons for right arm and shoulder pain, if it can’t be improved by resting and keeping warm, you should consult a doctor in time to clarify the cause of the disease and follow the doctor’s instructions for treatment.