Betty
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        I strongly suggest that both of your sons go visit a Chiropractor as soon as possible.   But make sure it is a good one - get recommendations.   And, then WATCH the massage procedure that is followed, and learn how to do it yourself.   You'll save a few  $$$ that way.   Also, I understand that there are doctors who specialize in SPORTS MEDICINE, and they should be able to relieve your sons' pain.