Peanut allergies have been rising dramatically – enough so that many elementary classrooms have banned peanuts. About four times as many children have peanut allergies today as 20 years ago.
The severe form of peanut allergies can be deadly, which is why thousands of people must carry around an adrenaline shot (called an epinephrine pen, or "epi-pen").
Now, allergy doctors are debating whether they should offer an experimental allergy treatment. It was a topic this past weekend, at the 2012 Northwest Allergy Forum in Seattle.