Exposing children to small amounts of peanuts helps treat the symptoms of allergic reactions, but doesn’t cure them. (Credit: PR Image Factory/Shutterstock)

New research points to a potential wrinkle in a promising treatment for severe peanut allergies: Reactions can return if the treatments stop.

Roughly 1.25 million children in the U.S. have peanut allergies. Their immune systems go into overdrive when they encounter peanuts, producing antibodies that kickstart a process of inflammation