Making the world better, one answer at a time. Angel Dust is one of the street names of Phencyclidine, or PCP. It is a drug formerly used as an anesthetic agent, exhibitinghallucinogenic and neurotoxic effects.
A blow to the rib cage can cause either a fracture or bruising to the membrane that covers the bone (periosteum). Both can be very painful, and it is very often hard to distinguish the difference, even with a X-ray.
Rib pain is often due to injury such as strained or broken ribs or pulled muscles and tendons. Diseases and conditions of organs and tissues in your chest, such as the lungs, heart and stomach, can result in chest pain that may be difficult to distinguish from rib pain caused by conditions of the ribs.