If you brought sunblock from home, be sure to check the expiration date. Out of date sunblock may not offer the protection that its SPF number predicts. According to Dr. Rachel Herchenfeld’s article in the Washington Post, many sunblocks contain ingredients that don’t have a long shelf life. Better be safe than sorry.
Another strategy is to cover up. Wearing light, long-sleeved shirts and sun hats can also minimize exposure.
Enjoy the beautiful, tropical weather in Miami.