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Bleaching agents, the most conventional treatment for freckles, have limited success in masking the appearance of freckles. Bleaching agents attempt to fade the freckles to a color approximating that of the surrounding skin. However, they can sometimes lighten or darken the skin surrounding the freckles, calling even more attention to the spots. Occassionally, bleaching agents cause rashes or chemical burns. Modern treatments for lightening freckles include freezing them with liquid nitrogen, and the use of strong acid peels or ablative laser treatments.
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