Whether you've been told to wait after a meal to swim, or to slather butter on your skin to relieve sunburn pain, you've probably heard your fair share of wives' tales on how to stay healthy during the summer. While some beliefs, such as scratching a mosquito bite can lead to an infection, are true, others such as poison ivy being contagious aren't true. Recently Medicine.net and Healthy Living debunked some of these myths so you can safely enjoy your favorite summer pastimes.