Ultraviolet-B phototest in patients with atopic dermatitis

To evaluate the possibility of ultraviolet (UV) rays as an aggravating factor of atopic dermatitis (AD), UV-B phototest was performed in patients with AD. Resulting, minimal erythema doses for UV-B were all within normal range and AD lesions were not reproduced by irradiation. UV-B may not be an important factor for skin aggravation in patients with AD.