pain
"I'm extremely sensitive to medicine. In fact, I haven't successfully taken any medicines in 14 years. A little over a year ago, I was t-boned and I have had intense back/nerve pain ever since. I can't take anything regularly because I'll develop an allergy of sorts, but when my pain is sky high, I take a quarter of 10/325 Norco and it makes all of the pain disappear (and of course I'm so sensitive that it keeps the pain away for 3 days)."