Making medicine is one of the last crafting unlocks you'll get in Black Myth: Wukong. While the crafting weapons and armour options simply appear at the Keeper's Shrine after you progress far enough through Black Wind Mountain, in order to craft medicine you actually have to complete a task for a certain NPC. Doing this will unlock Celestial Medicines as well, which are permanent bonuses you can apply to your character using Mind Cores.
It's a powerful mechanic, but one you could potentially...