Xiaoyao Pills are mainly used to soothe the liver and relieve depression, so you can take it if you are prone to losing your temper, have chest tightness and feel dizzy.
Liuwei Dihuang Wan mainly nourishes kidney yin, so it can cause night sweats, hot flashes, that is, sometimes the weather is not particularly hot but you will feel very hot for no reason, as well as backache. Then Liuwei Dihuang Pills will help.