“Prevention is really the key when it comes to blisters,” said board-certified dermatologist Anthony Rossi, MD, FAAD, assistant professor of dermatology, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York City. “To stop them before they appear, pay attention to your skin and take precautions if you know you’re going to do a lot of walking, running or other physical activity.”

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