The intensive morbidity index in respect of allergic dermatoses has made up 12.07 in 1986, allergic dermatitis being the most prevalent (72%). The morbidity has been the highest among subjects aged 21 to 40. Seasonal changes in the allergic dermatoses incidence rates have been determined: skin itching, urticaria, and neurodermatitis have been the most prevalent in October, whereas eczema occurred mostly in May.