11year old my son taking cortisone injection for civereasthe

Can we have a little more context for your issue please? It seems that your son is taking cortisone for civerasthe as you have posted in the subject, but beyond that, is there an issue? Do you want to know about complications? Is he experiencing pain? Are you concerned about weight gain on cortisone? With a little more information, we can help you out a little better. If you could, please let us know as soon as possible so we can aid you. Thanks you very much and good luck to your son!