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.
In addition it assists the lungs in breathing. The rib cage moves up and down facilitating inhaling and exhaling action of the lungs. The rib cage also covers organs like spleen, stomach and kidneys in it. Any injury or damage caused in the underlying organs can cause pain in the ribs. The left rib cage pain occurs due to various causes ranging from indigestion to respiratory disorders. Do not hesitate to seek medical help if you have left rib cage pain with discomfort for more than 2 days.