(Logo: <a href="http://photos.prnewswire.com/prnh/20120417/CG89172LOGO)">http://photos.prnewswire.com/prnh/20120417/CG89172LOGO)</a> Warmer weather drives people to wear clothing that leaves more of their skin exposed to the elements, including the sun, plants and bugs, said James Yiannias, M.D., Mayo Clinic, Arizona.