Complex regional pain syndrome (CRPS) is a debilitating nerve condition that can impact all aspects of a person’s life. The symptoms of CRPS can last anywhere from months to years, and they can be permanent in some cases. Complex regional pain syndrome can have a variety of triggers, and, as the Mayo Clinic notes, “its cause isn’t clearly understood.” However, medical researchers have identified several cases of CRPS linked to the annual flu shot. Continue reading →