Cold sores are EXTREMELY contagious. Once you experience the herpes virus outbreak, it becomes a recurring problem, which is why type 1 herpes should be taken seriously.
Dr. Lisa Oldson, MD discusses the factors that can trigger cold sores, prevention, treatments and new information that you may not know.





Dr. Oldson has been practicing internal medicine at Northwestern Memorial Hospital in Chicago since 1998. She earned her B.S. at the University of Illinois, and her M.D. from Rush Medical College. She is board certified in Internal Medicine.