[Double-blind placebo-controlled cow's milk challenge for children in general hospitals].

Every child with possible food allergies has the right to a double-blind, placebo-controlled cow's milk challenge. This test can be performed in the paediatric ward of a non-academic hospital. Challenge with other foodstuffs can lead to more serious side effects and therefore should be considered in a general hospital setting only after extensive experience with double-blind, placebo-controlled challenge for cow's milk has been obtained. Other items of international discussion on double-blind, placebo-controlled challenge in children are: the natural development of tolerance for cow's milk, IgE- versus non-IgE-mediated cow's milk allergy, and the exacerbation of pre-existing eczema during and after double-blind, placebo-controlled challenge.