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WHAT IS MELASMA?
Melasma is a skin condition presenting as brown patches on the face of adults.
Both sides of the face are usually affected. The most common sites of
involvement are the cheeks, bridge of nose, forehead, and upper lip.
WHO GETS MELASMA?
Melasma mostly occurs in women. Only 10% of those affected are men.
Dark-skinned races, particularly Hispanics, Asians, Indians, people from the
Middle East, and Northern Africa, tend to have melasma more than others.
The precise cause of melasma is unknown.
Melasma is thought to be the stimulation of melanocytes or pigment-producing
cells by the female sex hormones estrogen and progesterone to produce more
melanin pigments when the skin is exposed to sun. Women with a brown skin type
who are living in regions with intense sun exposure are particularly
susceptible to developing this condition
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People with a family history of melasma are more likely to develop melasma
themselves.
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A change in hormonal status may trigger melasma. It is commonly associated with
pregnancy and called chloasma, or the “mask of pregnancy.”
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Birth control pills may also cause melasma.
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Sun exposure contributes to melasma. Ultraviolet light from the sun, and even
very strong light from light bulbs, can stimulate pigment-producing cells, or
melanocytes in the skin. People with skin of color have more active melanocytes
than those with light skin. These melanocytes produce a large amount of pigment
under normal conditions, but this production increases even further when
stimulated by light exposure or an increase in hormone levels. Incidental
exposure to the sun is mainly the reason for recurrences of melasma.
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It may also be noticed in apparently healthy, normal, non-pregnant women where
it is presumed to be due to some mild and harmless hormonal imbalance.
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Any irritation of the skin may cause an increase in pigmentation in
dark-skinned individuals, which may also worsen melasma. Melasma is not
associated with any internal diseases or organ malfunction.
HOW IS MELASMA DIAGNOSED?
Because melasma is common, and has a characteristic appearance on the face,
most patients can be diagnosed simply by a skin examination. Occasionally a
skin biopsy is necessary to differentiate melasma from other conditions.
HOW IS MELASMA TREATED?
While there is no cure for melasma, many treatments have been developed.
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Melasma may disappear after pregnancy; it may remain for many years, or a
lifetime.
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Sunscreens are essential in the treatment of melasma. They should be broad
spectrum, protecting against both UVA and UVB rays from the sun. A SPF 25 or
higher should be selected.
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In addition, Antioxidant solutions, physical sunblock lotions and creams may be
used to block ultraviolet radiation and visible light. Sunscreens should be
worn daily, whether or not it is sunny outside, or if you are outdoors or
indoors. A significant amount of ultraviolet rays is received while walking
down the street, driving in cars, and sitting next to windows.
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Any facial cleansers, creams, or make-up which irritates the skin should be
stopped, as this may worsen the melasma.
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If melasma develops after starting birth control pills, it may improve after
discontinuing them.
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Melasma can be treated with bleaching creams while continuing the birth control
pills.
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A variety of bleaching creams are available for the treatment of melasma. These
creams do not “bleach” the skin by destroying the melanocytes, but rather,
decrease the activity of these pigment-producing cells. Bleaching creams
contain Hydroquinone, which inhibits formation of new pigment. Bleaching creams
must be applied for at least 6 months to obtain a worthwhile lightening of
pigmentation. Even then, just a "whiff" of summer sun can darken the pigment
again and spoil months of hard work. Normally, it takes about three months to
substantially improve melasma.
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Creams containing Tretinoin and Glycolic Acid are used in combination with
hydroquinone to enhance the depigmenting effect.
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If progress is slow using a hydroquinone cream alone, tretinoin cream (a
prescription medicine) may be used. Tretinoin always causes a degree of
pinkness and peeling of the facial skin which can be controlled by starting
with a little then building up. A sun screen must be applied as well. Tretinoin
MUST NOT be used in pregnancy.
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Remember, a sunscreen should be applied daily in addition to the bleaching
cream. Apply the bleaching cream first then the sunscreen on top.
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Chemical peels and laser surgery may help melasma, but results have not been
consistent. These procedures have the potential of causing irritation, which
can sometimes worsen melasma. Generally, they should only be used by a
dermatologist in conjunction with a proper regimen of bleaching creams and
prescription creams tailored to your skin type. People should be cautioned
against non-physicians claiming to treat melasma without supervision because
complications can occur.
Management of melasma requires a comprehensive and professional approach by our
dermatologist. Avoidance of sun and irritants, use of sunscreens, application
of depigmenting agents, and close supervision by your dermatologist can lead to
a successful outcome.
It is important to follow the directions of our dermatologist carefully in
order to get the maximum benefit from your treatment regimen and to avoid
irritation and other side effects.
WHAT IS THE PROCEDURE AT KOSMODERMA
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During the consult, the skin is tested to determine its condition
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Based on the test results a home care regimen is prescribed for 6 weeks and
your skin is given initial peel prep. The home care is just as important as the
clinic procedures
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After 6 weeks, chemical peels – Glycolic / Lactic Acid / TCA treatments are
begun. The spacing and number of sessions depends on the severity of melasma
and your skin condition
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We recommend between 4 – 8 sessions of medium level peels 2 weeks apart or 3
deep peels a month apart
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The home care is continued for a further 3 months post treatments
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