Researchers have found some success treating allergic children with very, very low doses of the allergenic substances such as milk or peanuts. One study had 33 children with peanut allergies eat peanut protein powder equivalent to one-thousandth of a peanut. Four of the children had to drop out because of allergic reactions, but six of nine children who stuck with the program for a few years are currently reaction-free regarding peanuts.
Previous attempts to desensitize people to food allergies often triggered potentially life-threatening reactions. But the new studies use just the protein within foods such as milk and peanuts that trigger allergic reactions.
Researchers still consider this to be a very early and experimental method, and warn parents not to try it at home. There is still always the risk of triggering dangerous allergic reactions.