Melasma ('pregnancy mask')

Melasma (or chloasma) is characterized by tan or brown patches on the cheeks, nose, forehead, and chin. Although usually called the "pregnancy mask," men can also develop it. Melasma may go away after pregnancy but, if it persists, can be treated with prescription creams and over-the-counter products. Use a sunscreen at all times if you have melasma, as sunlight worsens the condition.