The association of atopic dermatitis, asthma and allergy is frequent. Hence, it is logical to imagine that eviction of the main indoor allergens (dust mites, animal danders) would have a preventive effect on the onset and progression of atopic dermatitis and the risk of asthma. Recent epidemiological studies are generally negative with regard to primary and also secondary and tertiary prevention. Only one study appeared positive; it combined eviction of food allergens and of indoor allergens during the first year of life. Other studies are warranted to assess the interest and efficacy of eviction of inhalant allergens in atopic dermatitis.