Melasma is a common condition caused by overactive pigment producing cells that is often linked to pregnancy but has other causes as well inclduing acne outbreaks, hormonal treatment, sun exposure etc. The first treatment is to make sure that you are using a complete sunblock with 50 spf or better that blocks UVA and UVB rays. Any treatment will be frought with disaster if continued sun exposure occurs. The second treatment is to eliminate the causative factors like hormone balance, pregnancy, illness, acne control, etc. Again, any treatment while the precipitating cause is not treated will have limited long term improvement. Once the underlying causes have been corrected or diminished, treatment should include topicals like triluma (combination, retin a, hydroquinone and topical steroid) and possibly other topicals like Kojic acid. Next, intense pulsed light treatments are effective as well as q-switched lasers are also effective treatment. Additionally, TCA chemical peels can be helpful in refractory cases.