The information is a little scanty to be sure what will work. Here are things that may help SEVERE ITP:
Xiao Chai Hu Tang - first choices for cases with palpable splenomegaly.
Si Miao San - first choice for cases with obvious Damp Heat, including generalized inflammatory tendencies, weight gain, and benign growths
Qing Ying Tang - use for severely hot animals with deep wiry pulses; one of the top choices for ITP from vaccination
Those are my top recommendations. Hopefully you'll be able to take it from here.
Steve