You may have seen the pictures circulating online of large blisters that people claim were caused by Banana Boat sunscreen, but one Saskatoon dermatologist doesn't believe sunscreen caused a number of these cases.
Dr. Duane Lichtenwald says some of his patients have voiced concern after seeing the pictures, but he says sunscreen burns and allergic reactions would be widespread, not in streaks or patches, because you apply sunscreen all over. Lichtenwald believes most of those burns were caused by more plausable explanations. For example, he says three to four people come in his office each year suffering from spotty burns caused by the acid found in drinks containing lemon or lime juice. If that dries up, the chemical in the juice can cause an exaggerated sun burn on that patch of skin. He says if you are concerned about your sunscreen, apply the sunscreen on a dime-sized area on the back of your hand for a couple of days, and if there isn't a reaction, you should be safe to use it. But he also cautions people to take other precautions like wearing a hat on sunny days to prevent too much exposure to the sun.