Chris Serino, an Albuquerque Fire Department fire fighter, was boarding a flight home from Washington, D.C. in the spring of 2014, when he noticed a rash on his arms and legs. “I had taken an Aleve and it looked like I was having an allergic reaction,” he recalls. When he got home that evening, Chris took a Benadryl, hoping to relieve the symptoms. That next morning, however, they only got worse.