“…An estimated 10% of patients with AD are reported to deteriorate after solar exposure. [1,2] Although sunlight may improve or exacerbate AD, the effect of UV light on AD in clinical practice is often unclear, since the symptoms may also be explained by a host of unrelated circumstantial factors such as humidity, scratching, pollen exposure, psychological factors, skin care, and comorbidities such as polymorphous light eruption (PLE). [3] In the literature, photosensitivity in AD is reported as photoaggravation of AD, [1,[4][5][6][7][8][9][10][11][12][13][14][15][16] photosensitive eczema, [17][18][19] light exacerbated eczema, [20,21] photoexacerbated AD, [22] and even chronic actinic dermatitis (CAD).…”