Spica Prunellae has the functions of clearing away liver fire, dispersing stagnation, relieving swelling, clearing away heat and toxic materials, eliminating phlegm and relieving cough, and cooling blood to stop bleeding. Abrus cantoniensis has the functions of clearing away heat and promoting diuresis, removing blood stasis and relieving pain. In fact, the properties of the three kinds of grass roots are still roughly the same. For your reference, it is better to ask the regular Chinese medicine before taking the three kinds of grass roots 1.