Stretching exercises for shoulder and elbow pain are generally held for 30 to 60 seconds. Performing two to five repetitions is usually all that's needed to experience a positive effect. During the first week, I typically ask my clients to commit to performing their stretches as often as possible (two to five times each day) to aggressively reduce their symptoms. It should always feel good to perform the stretching exercises, so this really shouldn't be a hard sell. After the first week, when your symptoms have abated, you can ease off and find the ideal number of times needed to keep your pain at bay. I recommend doing the exercises first thing in the morning and last thing before bed as most people's pain becomes aggravated during sleep.
Find out more about this book:Fixing You: Shoulder & Elbow Pain: Self-treatment for rotator cuff strain, shoulder impingement, tennis elbow, golfer's elbow, and other diagnoses.