What You Need To Know About SPF, Sunburns + Skin Cancer Even though the sun feels great after a long winter, sunscreen is critical (and not just seasonally). I was thrilled to have the opportunity to get some key questions about SPF, sunburns, and skin cancer answered by Chief of Dermatology at Tufts Medical Center, Dr. Clarissa Yang. HealthGuest UserJune 4, 2019Comment Facebook0 Twitter LinkedIn0 Reddit Tumblr 0 Likes