When you have been involved in an auto accident, you will have scrapes and bruises as proof of your injuries. However, you will also experience muscle aches and pains that are not visible, but many times are a lasting injury that takes much longer to heal. Because there is no cream to reduce the chance of infection or Band-Aid that can cover the muscle, these injuries are hard to treat. Here are five steps to treating muscle pain after an auto accident and some signs you should pay attention to.