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First: What is Melasma (for comparison)?<\/h1>\n
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melasma = acquired hyperpigmentation (non-contagious) that usually appears as symmetrical patches in areas of photoexposure (mainly face). It is related to UV light and also visible light, and can be associated with hormones (pregnancy, contraceptives) and genetic predisposition.\u00a0<\/p>\n
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Typical melasma keys:<\/h1>\n
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<\/span>Patches (not dots), relatively \u201cdiffuse\u201d edges\u201d<\/div>\n \u2022 Symmetry (Left and Right Similar)<\/span><\/div>\n \u2022 Wors with sun\/light<\/span><\/div>\n \u2022 Slow improvement, frequent relapses if no photo protection serious<\/span><\/div>\n<\/div>\n
Now yes: the important thing.<\/div>\n
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\u2e3b<\/div>\n
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1) Post-inflammatory hyperpigmentation (HPI or PIH): the great imitator<\/div>\n
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how does it look<\/div>\n
\u2022 Brown (sometimes greyish) spots right where there was inflammation or injury<\/span><\/div>\n \u2022 Can be in the form of a \u201cmap\u201d (irregular patches) or spot marks<\/span><\/div>\n \u2022 Very common after: acne, aggressive hair removal, dermatitis, burns, poorly tolerated peeling, poorly indicated laser, constant friction<\/span><\/div>\n<\/div>\n
How it differs from melasma<\/div>\n
\u2022 Does not need symmetry<\/span><\/div>\n \u2022 His story always tells: \u201cI got it after pimples \/ irritation \/ wax \/ peeling \/ rubbing\u201d<\/span><\/div>\n \u2022 Often there are several spots with different shades \u201cin different stages\u201d<\/span><\/div>\n<\/div>\n
HPI is more prevalent in IV to VI phototypes because melanocytes are more reactive to inflammation.<\/div>\n
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HPI worsening error<\/div>\n
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Treat it like melasma aggressively (strong peelings, friction, repeated exfoliation) without controlling inflammation and without photoprotection: that feeds the pigment.<\/div>\n
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\u2e3b<\/div>\n
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2) Solar lentigos (\u201cSun spots\u201d): defined points that are not erased<\/div>\n
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how they look<\/div>\n
\u2022 \u201cLarge Freckles\u201d or \u201cRound Spots\u201d<\/span><\/div>\n \u2022 Well-defined edges<\/span><\/div>\n \u2022 Light brown to dark color<\/span><\/div>\n \u2022 Typical areas: cheekbones, temples, forehead, back of hands<\/span><\/div>\n<\/div>\n
How it differs from melasma<\/div>\n
\u2022 Lentigo is usually an isolated lesion or several \u201cmoneditas\u201d<\/span><\/div>\n \u2022 Sharp edges, not diffuse patch<\/span><\/div>\n \u2022 Does not depend so much on hormones; depends on damage accumulated by sun<\/span><\/div>\n<\/div>\n
Dermnet describes the lentigo as a flat or slightly raised lesion with a clearly defined edge and, unlike freckles, it does not \u201cgo\u201d in winter.<\/div>\n
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huddle<\/div>\n
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Apply only \u201csoft\u201d depigmenting hoping that will disappear like melasma: lentigos respond differently and often require specific strategies (always with medical\/professional criteria depending on the case).<\/div>\n
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\u2e3b<\/div>\n
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3) Freckles (efelids): they darken and clear with seasons<\/div>\n
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how they look<\/div>\n
\u2022 Small light brown dots<\/span><\/div>\n \u2022 Increase in summer, improve in winter<\/span><\/div>\n \u2022 They appear from youth, sometimes childhood<\/span><\/div>\n<\/div>\n
key difference<\/div>\n
\u2022 They are more seasonal and genetic<\/span><\/div>\n \u2022 Not wide \u201cmask\u201d patches like melasma<\/span><\/div>\n<\/div>\n
huddle<\/div>\n
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Overtreating freckles as if they were \u201csevere melasma\u201d: the skin is irritated and HPI can be fired on top of it.<\/div>\n
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\u2e3b<\/div>\n
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4) Contact dermatitis \/ Chronic irritation: Spot + Sensitivity<\/div>\n
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This happens a lot with:<\/div>\n
\u2022 Perfumes<\/span><\/div>\n \u2022 Essential oils<\/span><\/div>\n \u2022 Internet \u201cmiracle\u201d creams<\/span><\/div>\n \u2022 Rub with towels\/brushes<\/span><\/div>\n \u2022 Repeated hair removal<\/span><\/div>\n \u2022 Makeup or irritating protector<\/span><\/div>\n<\/div>\n
how does it look<\/div>\n
\u2022 The skin usually itchy, burn or be \u201crough\u201d<\/span><\/div>\n \u2022 There is previous or intermittent redness (in high phototypes it may not look red, but it feels)<\/span><\/div>\n \u2022 Irregular spots, sometimes around mouth\/eyes<\/span><\/div>\n<\/div>\n
error that gets worse<\/div>\n
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Put acids on an irritated skin \u201cto lighten fast\u201d. Typical result: More inflammation \u2192 More pigment (HPI).<\/div>\n
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\u2e3b<\/div>\n
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5) Drug-induced hyperpigmentation: when the origin is \u201cinside\u201d<\/div>\n
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\u00a0<\/span>Professional beautician specialized in rejuvenation, facial diagnosis, aesthetic equipment and advanced skin care. <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>Recommendations, guides and products with backup <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>dermatological <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>and visible results.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> Also certified in micropigmentation and therapeutic massage, integrating well-being, advanced equipment and comprehensive aesthetics.<\/span>\u00a0<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n