Freckles: Lentigines require no specific treatment. A broad-spectrum sunscreen may help to prevent further appearance and darkening of solar lentigines. Several creams may lighten lentigines if applied for a number of months. These include hydroquinone or antioxidants: Alpha hydroxy acids, vitamin c, retinoids, azelaic acid. Liquid nitrogen is also very effective.
Answered 6/24/2014
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