Hi Oliver, have they tested her for HPylori? Treatments did not work because of Hpylori. Please Google search ITP and HPylori. It takes 2 antibiotics taken together to treat it. There are two tests they can use a breath test or stool sample test. However you can’t be on anything like Prylosec or even Pepto Bismol for two weeks prior to taking the breath test or you may get a false negative. I do not know if its the same for the stool sample test. Many doctors do not know about the correlation between ITP and HPylori, please research it there is definitely a correlation. Took 3 weeks to convince a doctor to do the test. After 4 days on antibiotics platelets started to rise and very quickly.