Avoid activities that provoke pain, such as repeated over head lifting/swimming/tennis. Do not however stop moving your arm completely – try to continue with normal daily activities. Use an ice pack (frozen bag of peas) wrapped in a damp t-towel for 10 minutes x 3 times a day. Seek GP or pharmacist advice on medication such as simple analgesia or anti-inflammatories. Seek Physiotherapy advice for appropriate Rehabilitation.