Atopic dermatitis (AD) is a chronic inflammatory skin disease, which is characteristically associated with intense pruritus and eczematous lesions. 1 Robert Willan, an English dermatologist, was the first to describe the disease in 1808. 2 In most countries, over 20% of children are affected at least once during a period of their lives. [3][4][5] Despite the fact that 85% of all cases manifest before the age of five, AD can occur lifelong and the prevalence of AD is still high in adulthood. 6-8 Surprisingly, recent data based on two birth cohorts revealed that only 38% of adult AD patients in the United Kingdom reported a childhood onset of symptoms. 9Patients suffering from AD are prone to viral and bacterial infections. 5 Staphylococcus aureus (S. aureus) infections are particularly common in AD patients, leading to superinfection. 10