Several weeks ago my daughter had her wisdom teeth removed. That afternoon she noticed her elbow was red and sore. She also had a small red spot on the inside of one of her fingers. We spoke to the oral surgeon, but he couldn't relate it to her oral surgery. The next day a nickel sized blister had formed on her elbow and a smaller one had formed on her finger. We went to local emergency care practice and the doctor there prescribed an antibiotic and a steriod cream. They eventually healed and went away. Now, 5 weeks later they are back in the same place.