You may have sun-derived or post-inflammatory hyperpigmentation (PIH) if the areas of pigmentation are like freckles, are more apparent with sun exposure and not usually symmetrical on the face. They can appear as a larger cluster of pigmentation in some areas.
If you believe you have sun-derived/post-inflammatory hyperpigmentation, click here.
Similar to age spots, liver spots and melasma are also protective responses from the skin. Underneath the brown color is inflammationi and redness. However, this inflammation is from the liver. In order to treat the spots, you must heal the liver damage.
If you believe you have internally-derived hyperpigmentation, click here.