A so-called ‘beauty hack’ on TikTok encourages viewers to apply a layer of calamine lotion over large sections of the face, or even all of it, before using foundation and other make-up on top.A so-called ‘beauty hack’ on TikTok encourages viewers to apply a layer of calamine lotion over large sections of the face, or even all of it, before using foundation and other make-up on top.Read MoreHealth News | Mail Online