I have had pain in my left arm due to the ulner nerve for about a year. I had a cortisone shot about three months ago and it "wore ' off last week. I am scheduled to receive another on the 20th of this month. I woke up this a.m. and there is a red line running down my arm from the elbow to the wrist. it is painful but not unbearable. I am a 51 year old woman. Should i see my Dr. sooner than the 20th?

Optional Information:
Female , Age: 51