Alum is a staple and very versatile ingredient in many traditions. There's even entire alum ceremonies. Typically it is used as a cleanser, absorbent and protection. It can also be used in stop gossip types of work. A great work with alum is to add a crystal to a glass of water along with sea salt, camphor and anil. Place this glass anywhere you want to absorb negative energy. Place it on an altar to keep thar space clean, near doors if you have alot of guests coming in and out. Wonderful placed next to a bed if nocturnal issues are occurring.
*sold as a curio only
*External use only