I know pain medication can aggravate some pain, but my left arm/hand now chest and ribs hurt so bad, hand/arm gets ice cold. I am in such a trap, I don't know the answer and I fear it is driving me insane. I have small lumps forming all up the back of my upper arm left one only, on my left ribs. Can pain med actually cause all of this mess? I can't hold on to my job much longer I fear, the depression is so bad and i cannot think straight hurting so bad. I cannot keep trying for help due to appointments on the job, and if I don't have a job, then I have no funds or insurance. I don't see how pain med could cause all of this, with mottled skin, lumps, etc. but does anyone have more information?