Advice and written instructions apparently aren't enough to educate some families on how to keep their children who have allergic reactions to milk or eggs from eating the offending foods.
Recent findings from the ongoing, federally funded Consortium of Food Allergy Research initiative show that of some 500 infants aged 3 to 15 months with allergies to egg, milk, or both, 72% had an allergic reaction during a 3-year period, despite health professionals' efforts to educate families about allergenic food exposures. In total, the children had 1171 reactions during the study period (Fleischer DM et al. Pediatrics. 10.1542/peds.2011-1762 [published online June 25, 2012]).
Voelker R. Families Still Let Guard Down With Allergic Children. JAMA. 2012;308(3):226. doi:10.1001/jama.2012.8476