Case 3
A female with a history of eczema and high cholesterol presented to allergy clinic at age 4. Her mother reported that at age 8 months, she had a reaction to a Kool aid® Jammer (red in color, possibly cherry-flavored). Within minutes she experienced lip and eyelid swelling and urticarial rash on face and trunk. She was seen in our Emergency department, was treated with oral steroids and antihistamines, and the symptoms resolved. Red dye was presumed to be causal, but she continued to consume items containing red dye over the following years without adverse reaction. Her physical exam was unremarkable at the time of her allergy visit. Skin prick testing to red dye, strawberry, cherry, and blueberry was negative. She returned at age 7 for skin prick testing for mold (Alternaria alternata, Bipoaris sorokiniana, Hormodendrum cladospor, Aspergillus mix, and Penicillium mix); all of these tests were negative.