A standard patch test set of 23 allergens (ICDRG-Trolab Hermal) was tested on 90 patients with atopic dermatitis in a sigle, open, non comparative study. The patients were selected using the Hanifin-Rajka clinical features criteria as diagnostic guidelines. Assessment was done after 72 hours after application of the allergens. Forty one (45.5 percent) patients, consisting of 19 males (46.3 perc…