Atopic dermatitis is a common chronic inflammatory condition of skin with a complex aetiology, resulting from the interplay of genetic predisposition, innate and adaptive immune system responses and environmental factors. 1,2 AD prevalence rate is approximately 20% in children and 10% in adults worldwide and has a significant negative impact on the quality of life due to intense pruritus and relapsing course. 3 There are three different types of atopic dermatitis: the persistent type, in which AD starts in childhood and persists; the relapsing type, in which AD appears during childhood with symptom-free intervals until adulthood; the adult-onset type,