Everyone knew that there were some things almost impossible to heal on the human body. One were the eyes, but the other fell under the umbrella of reproductive organs. Whether it be a female's uterus, or a male's penis and testicles, they both required heaven defying medicines to heal.
The good news was the Violet had no idea that Dyon had eaten a Planet level plant used to specifically stimulate primordial yang just a few days prior. Not only had he eaten it, he had even evoked its highest level of use when he caused nine clouds to appear.
The amount of pure yang energy within Dyon's body wasn't something even a dao formation expert who specialized in yang energy could match. Three days was more than enough to heal him completely.