Our expert says:
Medical article that I found on the treatment of melasma:
Successful treatment of melasma involves the triad of sun blocks, bleach, and time. Without daily use of sunscreens, treatment will fail. Sunscreens should be opaque, broad-spectrum formulations with an SPF of at least 30. Bleaching preparations include 2% or 4% hydroquinone-containing creams or gels. Combination products containing sunscreens and hydroquinone are now available and are very effective and convenient for the patient. These are applied once daily. Simultaneous use of topical tretinoin gel (0.025%) is usually required as well.
For our patients, we recommend combination sunscreen/hydroquinone products in the morning and tretinoin in the evening. Also available now are combination corticosteroid/hydroquinone/tretinoin creams, which are very effective and well tolerated by patients for short periods of time (ie, 8 weeks). Another option is glycolic acid peels in patients with primarily epidermal melasma. Regardless of the treatment modality, patients need to be aware that hyperpigmentation may occur even with effective treatment.
So it seems that her combination is medically acceptable and if used under supervision and for short periods (up to 8 weeks) will be safe. However, I think you should let her know that it dries out you skin severely.
The danger with Ochronosis is usually when people buy Hydroquinone over the counter and use it inappropriately - especially in people with dark skins.
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