Some Specialists advise Gammaglobulin infusions also.What are current symptoms ,is she getting spots on body,, having bruising easily,prolonged bleeding etc? what is her Liver
profile, PT,BT?CT, ANA test? if you give clinical symptoms it will decide what next should be done There is a choice of splenectomy( spleen
removal) also depending on clinical severity.
here is a link which you could read about a medicine currently under proven trials awaiting marketing approval in USA .You may write to them for latest.http://www.sciencedaily.com/releases/2009/03/090320131519.htm