My 13 year old daughter suffered a concussion 11 weeks ago during a soccer game. She has since been diagnosed with Post-concussion syndrome. She has had a variety of symptoms over the course of the 11 weeks and some seem to be improving. My concern is that her headache has not gone away. She has gone from a 9 on a pain scale of 1-10 down to a 6, but it still bounces between 6 & 9 on a daily basis. I have been told the pain will be the last thing to go away, so it is encouraging to see small changes in other areas. Her personality seems to be returning, less confusion and memory loss, and less irritability. She is normally a very active person, a top athlete for her age. She has recently started doing minimal activities (non-contact, low risk) like cardio and weight lifting. Can anyone give me an idea of how long this headache will last? We have tried every OTC you can think of along with Tylenol 3, but had to stop because of rebounding. Prednisone in one large dose (60mg) made a positive difference but caused a nasty reaction. In a much smaller dose (20mg x 3, then 10mg x 3) it hasn't seemed to help. I no longer give her anything to help her sleep, she seems to be sleeping well on her own again. She is frustrated at being limited with her physical activity and I can only imagine the headache isn't helping her frustration level. I am at a loss for where to go from here. She has been seeing an Osteopathic Manipulative Therapist for approx 6 weeks now. Her doctor says she is seeing definite improvement, but it seems to be slow going. I am looking for info on any treatment procedures that have been successful with others in this situation.