Xia Ku Cao is mentioned in the herbs inferior class of the SNBCJ. Being bitter, pungent and cold, it is said to treat both cold and heat and head sores, concretions and damp impediment. Modern usage also includes management of high blood pressure.

Do we use this herb in the SHL/JGYL tradition at all? I would think this might be a useful addition to Rx where damp and heat cause blockage and thus  cause HBP, especially the diastolic value.