Nephew had ITP as 4 yo and resolved with prednisone ( that was 14 years ago). Only treatment experience was several yrs ago
Found these sites of interest:
Division of Hematology
Reference List 2001-2002 --scroll down to ITP; several articles
RBC Transfusion protocals
Idiopathic thrombocytopenic purpura: a practice ...
MEDLINEplus Medical Encyclopedia: Idiopathic thrombocytopenic ...
In children, the disease often runs its course without treatment.
In adults, initial treatment with prednisone is given. A splenectomy (removal of the spleen) is indicated if the person does not respond to prednisone. The spleen is the major site of platelet destruction, so a splenectomy will resolve the thrombocytopenia in most people.
Other treatments (when the disease does not respond to initial treatment) are oral danazol, high dose gamma globulin injections, drugs that suppress the immune system, and passage of the blood over a Protein A (Prosorba) column (which filters antibodies out of the blood stream). Anti-RhD therapy, which destroys cells carrying a specific blood cell molecule, is also useful in some people.
People with ITP should avoid taking aspirin or ibuprofen, because these drugs interfere with platelet function, and bleeding may occur.
ITP Info from National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Check out: Platelet Disorder Support Association
Wealth of info here---be cautious with some non-medical TX recomended.