The next day, Yao Yuanzheng and two Imperial Physicians came to take the pulse of the prince regent, confirming that his health had stabilized. Afterwards, they returned to the Imperial Pharmacy with Yingbao to gather the medicinal herbs for her to prepare.
This time, Yao Yuanzheng insisted on observing the medicine preparation process.
Yingbao complied, instructing several attendants in grinding and boiling the herbs.
When the preparation was almost done, she secretly added a bit of Wudingzhi into the mix, stirring it into a dense paste. Once it cooled, she instructed them to roll it into individual pills and wrap them in wax paper.
On another side, an attendant was making wax shells, also known as hanging wax skin.
First, they melted wax in a pot. When the wax oil lowered to a warm temperature, they dipped a wooden ball that's fixed on an iron branch into the pot, afterwards immediately putting the wooden ball into cold water to solidify.