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Melasma (chloasma, mask of pregnancy)
Description
Acquired brown hyperpigmentation of the face and neck in genetically predisposed women.
Treatment
Patients must be made aware that treatment requires several weeks and strict sun protection. Minimize sun exposure at midday and encourage wearing of hats. Sunscreens of at least SPF 30 containing avobenzone, Mexoryl, or physical blockers such as titanium dioxide or zinc oxide that block both ultraviolet A & B should be worn daily.
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| The upper lip and chin are the areas most frequently affected by melasma. | The pigmentation develops slowly without signs of inflammation and may be faint or dark. |
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| Melasma occurs during the second and third trimeter of pregnancy and also in some women taking oral contraceptives. | Melasma is a common complaint in women with darker skin tones. |