Kissing allergies

Pediatrics for Parents, April, 2002

No -- we're not talking about people allergic to kissing, but what can be passed from the kisser to the kissee. A recent study found that a kiss from a person who has eaten nuts may cause an allergic reaction in a recipient who is allergic to nuts.

In a group of 379 people allergic to peanuts, tree nuts, and seeds, 20 (5.3%) reported an allergic reaction from kissing. These people received a kiss from a person who had recently eaten the food to which they are allergic. Most of the reactions were mild--usually localized itching and swelling. Five began to wheeze, one to the point of needing epinephrine. All the reactions began within one minute of the kiss.

Children with severe allergic reactions to foods have to be vigilant in avoiding exposures. This study shows that kissing is another activity to watch.

New England Journal of Medicine, 6/6/02.