Israeli Study Finds Accidental Skin Contact with Allergens Rarely Triggers Severe Reactions in Children

A new Israeli study conducted at Meir and Schneider Medical Centers found that accidental skin contact with food allergens does not cause life-threatening allergic reactions in children with confirmed food allergies. The research, led by Dr. Idit Lachover-Rot from Rambam Medical Center, involved 293 children, including 192 with proven food allergies. During 263 supervised exposure tests, allergenic foods such as cow's milk, eggs, peanuts, sesame, nuts, and almonds were applied to the children's skin for 15 minutes.

Results showed that in 83.7% of the tests, no reaction occurred; 15.2% exhibited only mild local skin responses like redness or swelling; and 1.1% had slightly more extensive skin reactions that resolved with antihistamine treatment. Importantly, no cases of anaphylaxis or systemic allergic reactions were recorded throughout the study.

The study noted that younger children and those allergic to milk had a slightly higher chance of mild local skin reactions, but no severe reactions were observed. Dr. Lachover-Rot emphasized that while the findings can reduce parental anxiety about accidental skin contact, they do not change existing medical guidelines. Children with food allergies must continue to avoid ingestion of allergens, carry epinephrine auto-injectors, and prevent oral exposure.

The research only assessed contact with intact skin, not broken skin or mucous membranes, where risks might differ. The study was published in the international journal Acta Paediatrica. Researchers hope these evidence-based insights will help families manage fears related to accidental allergen exposure more calmly without compromising safety protocols.