Critical care specialists in New York are board certified doctors who provide services to critically ill patients, with cross-training in internal medicine, nephrology, and pulmonology. Prescription drug abuse is defined as using medications in greater quantities than recommended or when not needed, with commonly abused drugs including painkillers, tranquilizers, and anti-anxiety medications. Back pain or sciatica is estimated to affect 60% of the population at some point, and physical therapy is often recommended to help alleviate symptoms and provide back pain relief.