After dealing with the Tianshan Saussurea, Su Wen casually processed the seventy-year-old Cordyceps and the Deep Sea Dragon's Spit Fragrance as well.
Most medicinal materials actually can't be directly used in medicine, they need to be processed with specific methods. Initially, this part of the process was recorded in medical books, but due to wars over the dynasties, too many precious medical texts have been completely destroyed.
For an old TCM practitioner like Hu Guojun, what he'd collected over half his life were just some fragmented texts. Had it not been for Su Wen's help in completing them, they would have been incomprehensible.
