If you are still experiencing significant pain in your arm despite taking anti-inflammatory medication and Tylenol, there are a few options you can consider. In addition to Tylenol with codeine, which is a stronger pain reliever available over-the-counter, you could also try using a topical cream such as Myoflex or Antiphlogistine directly on the affected area. Another option is Voltaren Emulgel, an anti-inflammatory cream that can be used as an alternative to the naproxen you are currently taking. It may also be helpful to speak to your doctor about possibly switching to a different anti-inflammatory medication if your pain has not improved significantly with the current one. It is important to consider all options, including the possibility of a cortisone injection for severe, constant, or chronic pain. Consulting with your healthcare provider can help determine the best course of action for your specific situation.