Question
I am a school nurse-walnut trees on play area (mulch). Believe them to be black walnut trees...have 4 yr. old w/ severe peanut, tree nut, egg allergy.  wondering if her playing in mulch is a trigger for excessive itching of skin-is there research somewhere on this as a potential trigger for allergic reaction. and is it recommended that these kids stay out of mulch near the trees? thanks

Answer
I would lean toward this being a problem with a severe allergy. Here is a reference I found on Walnut allergies

http://organizedwisdom.com/helpbar/index.html?return=http://organizedwisdom.com/...