My son is a football player and has been having pain and knots in his inguinal area for quite some time. It flares up at times and makes it very hard for him to run. The knots seems to run vertically along the place where his trunk meets his thigh, just medial and inferior to the anterior iliac spine. They have been looked at by a DR and he does not think they are hernias. These knots are bilateral but is flaring up on the right side at the moment. We are doing stretching before activity and icing after. Do you have any suggestions?