Jiang Qing's teeth were not good, and her gums were always inflamed. Kang Sheng gave her a recipe for rinsing with bamboo salt water: "Use fresh bamboo, fill a bamboo tube with large-grain sea salt, then put the bamboo tube into the oven and roast the inner membrane until it carbonizes. The salt will turn black. Add water and rinse your mouth." Jiang Qing followed the instructions, and this remedy really worked for inflammation. Jiang Qing's gum inflammation healed, and the Chairman's prostatitis also improved.