Pollen, bee stings and peanuts are all common allergies, but 19-year-old Alex Visker's issues are far more severe. He's allergic to food.
From a very young age, allergies were Alex's worst enemy. He recalled an incident when he was being babysat by his neighbors and had an encounter with peanuts.
"I turned bright red, and had hives from head to toe," he said.
As the years passed, Alex got worse.
Diet after diet, Alex tried anything to help him feel better. Eventually, he came to the realization that he is, quite simply, allergic to food.
Doctors believe Alex may have a form of what's called Mast Cell Activation Disorder.
Read more: http://bit.ly/1I9V6Th