Serena, I am in England & in the UK organisation, quite frankly this site is much more up to date and also has an online discussion group .
This is the place to find up to date information regarding treatments, research and the experiences of others , which not only gives you pointers to discuss with your medics but can help you make informed choices regarding you treatment,
This is a good starting point. It contains the current American/European treatment guidelines and is well written by European Nurses for nurses who know nothing about ITP i.e. me when I was diagnosed 2.5 years ago.
www.ebmt.org/Contents/Resources/Library/Resourcesfornurses/Documents/ITP%20Handbook.PDF
There is also
www.medicines.org.uk
as a good starter to research about various drug treatments.
I think you'll be able to access this
cks.nice.org.uk/corticosteroids-oral#!scenario
which is definitely worth reading.
Anne