I fell off a quad almost a week ago was diagnosted with lumbago which is lower back pain, as a result from the fall I also have a HUGE blue,black and purple bruise but I also have a baseball size lump, which I am really concerned about now, especially reading all these post!!! I also went to Mexico today to get checked but only got another shot which is an anti-inflammatory but I am very scared now!! Hope it works, keep you guys posted!! Good luck and GOD bless all!!!