Many women are going through depression when they have melasma or chloasma. Often, this form of excess pigmentation happens because of too much sun or female hormones. It is different from freckles in terms of size. It is generally bigger. So you can imagine how ugly you look with large brown patches over your face.
There are dermatological methods such as chemical peels, laser and microdermabrasion that can treat hyperpigmentation. However, they have potential side effects. And they are costly. There is no guarantee that they will work for you.