Pregnancy mask
Chloasma, melasma: Pigmentation of the face in irregular blotches, in a fairly symmetrical pattern on the areas around the eyes, temples, forehead (away from the hairline) apples of the cheeks and sometimes the upper lip. This dyschromia, related to pregnancy or use of estro-progestins, is aggravated by sun exposure; its regression, which is often very gradual, can be encouraged by using depigmenting products. In some cases it disappears a long time after the end of the pregnancy.
(Dictionnaire de Dermatologie Jean Civatte Editions CILF)