Melasma is an acquired pigmentation disorder experienced more often by women. It occurs on the photo-exposed body parts, mostly on the face and neck, and more rarely on the décolleté and arms.
The main risk factor is UV radiation followed by pregnancy and taking oral contraceptives.
The changes are characterized by brownish, sharply limited patches that may appear on the face in two forms: the central facial type where changes are present in the central part of the face, and the peripheral type where changes emerge on the lateral areas of the cheeks, along the edges of the mandible, and sides of the forehead. Certain patients may have a combination of both types of melasma. Melasma is most commonly present and exacerbated in spring and summer with sun exposure, while changes can withdraw slightly during winter.
Treating melasma is frustrating both for the patient and the physician. The disorder retracts spontaneously in only 6% of patients. The remaining patients require treatment to cure their skin changes. The treatment can be combined with other local or systemic therapies and esthetic treatments. Regardless of which treatment you choose, it is necessary to strictly avoid UV radiation, with the mandatory use of protective sunscreen (SPF 50+).