These two medicines **** the same effect is to activate blood circulation and remove blood stasis, the former activates blood circulation and removes blood stasis and at the same time can replenish qi, the latter activates blood circulation and removes blood stasis a little stronger, and it can warm the li. You can choose according to your situation. If you feel that you usually have signs of weakness, you can use Yi Gong Granules; if you usually feel that your stomach is cold and your menstruation has clots on the dark side, you can use Sheng Hua Tang. It is enough to choose one of them, no need to take them together.