I have second the other posters that suggest ridding her diet of all additives, preservatives and nasties. I have recently cured my severe ezcema and my daughter's blastocystis by going back to basics with our diet. We eat absolutely no additives and our health has never been better. I truly believe now that eating a completely natural/ healthy Diet free of any processing both prevents and cures illness. This website might help you http://www.betterbods.co.nz
Good luck with your wee one. It is horrible to watch them when they are so ill.