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Melasma
Treatment and Cure
Visit SkinCareRx's
Melasma Forum
What
is Melasma?
Melasma is a common
acquired increase of pigmentation that occurs exclusively in sun-exposed areas.
Brownish in color, it is exacerbated by sun exposure, pregnancy, oral contraceptives,
and certain anti-epilepsy drugs.
Melasmais reasonably common, especially in women of child-bearing age. However,
up to 10% of cases have been reported in males. While all races are affected,
there is a prominence among Latinos and Asians. Melasma is more apparent during
and after periods of sun exposure and less obvoius in winter months, when sun
exposure is lacking.
Melasmapresents itself in one of the three usually symetrical facial patterns.
The most common is a centrofacial pattern involving the cheeks, forehead, upper
lip, nose, and chin. Less common are the malar pattern, involving the cheeks
and nose, and the mandibular pattern, involvong the ramus of the mandible (the
side of the cheeks and jawline). Melasma also occurs on the forearms, but this
is rare.
What are the Causes of Melasma? Melasma
has been considered to arise from pregnancy, oral contraceptives, endocrine
dysfunction, genetic factors, medications, nutritional deficiency, hepatic dysfunction,
and other factors. The majority of cases appear related to pregnancy or oral
contraceptives. The infrequency of melasma in postmenopausal women on estrogen
replacement suggests that estrogen alone is not the cause. In more recent experience,
combination treatment using estrogen plus progestational agents is being used
in postmenopausal women, and melasma is being observed in some of these older
women who did not have melasma during their pregnancies. Sun exposure would
appear to be a stimulating factor in predisposed individuals. Although a few
cases within families have been describe, melasma should not be considered a
heritable disorder.
Treatments
for Melasma Successful
treatment of melasma involves the triad of sunblocks, bleach and time. According
to research done by Dr. Mark B. Taylor, a particular type of alpha hydroxy acid,
known as mandelic acid has been shown to improve a type of melasma that is often
resistant to topical treatments, dermal melasma.
MaMa Lotion & NuCelle
Skin Care are a few of the only skin care lines available with this type
of acid. Because this alpha hydroxy acid is also safe on Latino and Asian skin,
it can also be considered as a possible treatment for melasma.
Sunscreen, however, is the most important factor. Without daily use of opaque
sunscreen, treatment will fail (a broad-spectrum formulation with an SPF over
30 plus cover up is adequate). Bleaching
preparations include 2 or 4% hydroquinone-containing
creams or gels and 3% hydroquinone
solution.
Normally up to 2 months are required to begin to initiate response and up to
6 months to complete the process. Once epidermal melasma is cleared and is no
longer apparent with Wood's lamp examination, the hydroquinone and tretinoin
should be discontinued. However, the opaque sunscreen should be continued through
at least one summer season to reduce the risk of recurrence. Dermal melasma
does not respond to the above treatment, and at the present time cannot be treated,
with the exception of mandelic acid solutions. Often, melasma will slowly resolve
following childbirth or upon discontinued use of oral contraceptives.
Special Thanks to Fitzpatrick's Dermatology in General Medicine
as a reference for this page.
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