Condition

Tinea Versicolor

Tinea versicolor is a common rash caused by a yeast that already lives on everyone's skin. It leaves flat light or dark patches, usually on the chest, back and shoulders. It is not contagious and it is not dangerous.
At a Glance

Tinea versicolor is a rash caused by a yeast that already lives on everyone's skin. When that yeast overgrows it leaves flat patches on the chest, back, shoulders and neck that are lighter or darker than the skin around them, with a fine dusty scale you can see if you scratch it. Antifungal shampoos and creams kill the yeast within about two weeks — but here is the catch almost nobody is told: the colour difference stays for months afterwards, so it looks like the treatment failed when it actually worked. It also comes back in most people, usually in warm weather, which is why a maintenance wash once or twice a month is part of the plan rather than an optional extra.

Key Facts

How CommonVery common, particularly in teenagers and young adults, and much more so in hot, humid places.
Who Gets ItAnyone, most often between the teens and the thirties. More likely with oily skin, heavy sweating, or living somewhere warm and humid.
Chronic or CurableThe yeast overgrowth is easy to clear, but it comes back in most people. Around 60 to 80 percent have it again within two years without maintenance treatment.
Rx RequiredNo. Over-the-counter antifungal shampoos clear most cases. Pills are used for widespread or stubborn cases.
ContagiousNo. The yeast is already on everyone's skin, so you cannot catch it or pass it on.

Symptoms

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Tinea versicolor is flat. That is the first thing to know — you can see it but you cannot feel it, and it is the colour change rather than the rash that brings people in.

What it looks and feels like

Flat patches of a different colour — lighter, darker, pink, tan or salmon. "Versicolor" means the colour varies, and it varies from person to person rather than within one person.
Fine, dusty scale — barely visible until you scratch or stretch the skin, when a powdery flake lifts off. This is the most useful sign, and it is what separates it from most of its lookalikes.
Many small patches that run together — they start as coin-sized ovals and merge into larger irregular maps.
Little or no itch — sometimes a mild itch when hot or sweating. If it itches a lot, consider something else.
More obvious after sun — the affected skin does not tan, so the difference stands out in summer. Most people notice it after a holiday, which is why it feels like the sun caused it.
No lumps, no pain, no bumps — the skin surface is level with the skin around it.

Where it shows up

  • The chest, upper back and shoulders — the classic pattern, following where the skin is oiliest.
  • The neck and upper arms.
  • The face — more common in children and in people in tropical climates.
  • Rarely the lower body, unless it is widespread.

How it looks on different skin tones

On light skin, the patches are usually pink, tan or coffee-coloured and often look darker than the surrounding skin. On brown and Black skin, they far more often look lighter, and the contrast can be striking — which is the main reason it gets mistaken for vitiligo. The difference is that tinea versicolor patches are off-white or fawn rather than the stark chalk-white of vitiligo, they have that fine scale, and their edges are less sharply defined. The pigment change also takes longer to even out on brown and Black skin, sometimes six months or more.

Light
Medium
Brown
Deep

Several things cause pale or discoloured patches. If yours does not fit the description above, see Lookalikes near the bottom of this page.

Causes & Risk Factors

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Tinea versicolor is caused by a yeast called Malassezia. This is not something you caught. Malassezia lives on almost everyone's skin as a normal resident, feeding on the oils the skin produces. Tinea versicolor happens when it multiplies beyond its usual numbers and shifts from its round form into a thread-like form that grows in the top layer of skin.

Why it overgrows in one person and not another is not fully settled, but the conditions that encourage it are clear: heat, humidity, sweat and oily skin. That is why it is far more common in the tropics, why most people notice it in summer, and why it clusters in the teens and twenties when the oil glands are most active. Pregnancy, oral steroids, a weakened immune system, oily skincare products and a family tendency all raise the odds. The colour change is a side effect of the yeast rather than the yeast itself — it produces a substance that blocks the pigment-making cells in the skin from working normally, which is why patches go pale and stay pale for months after the yeast is dead. None of this has anything to do with hygiene. Washing more often does not prevent it, and it is not a sign that you are unclean.

What Hurts and What Helps

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What Makes It Worse

  • Heat and humidity. Summer and tropical climates are when almost everyone notices it, and when it comes back.
  • Sweating heavily, and staying in damp clothing afterwards.
  • Oily skin, and heavy or oily body lotions, sunscreens and hair products that run onto the chest and back.
  • Sunbathing. It does not cause the rash, but it makes it far more visible, because the affected skin cannot tan while the skin around it does.
  • Oral steroids and other medicines that suppress the immune system.
  • Stopping treatment after one round and doing nothing else. This is the single most common reason it is back the following summer.
  • Judging progress by the colour. Nothing makes people abandon a treatment that is working faster than looking at unchanged patches after three weeks.

Daily Habits That Help

  • An antifungal shampoo used as a body wash. Selenium sulfide, ketoconazole or zinc pyrithione, lathered over the affected areas and left on for five to ten minutes before rinsing.
  • Using it daily for one to two weeks to clear it, then once or twice a month afterwards. That monthly wash is what keeps it from coming back, and it is the part people skip.
  • Washing off and drying properly after exercise or heavy sweating rather than sitting in it.
  • Lighter, oil-free products on the chest and back.
  • Sunscreen on the affected areas while the colour evens out, so the surrounding skin does not tan darker and make the contrast worse.
  • Stepping up to a shampoo or cream from the pharmacy for another week or two before assuming it has failed — the yeast usually clears well before the colour does.
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  • Patience with the pale patches. They take one to six months to even out and there is nothing that speeds it up meaningfully.

Try at Home

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Almost all tinea versicolor clears with an antifungal shampoo used as a body wash. Leaving it on for five to ten minutes matters more than which one you buy.

A maintenance wash once or twice a month
Always
The step that decides whether you are back here next summer. Once the rash has cleared, keep using the same antifungal shampoo as a body wash once or twice a month, and more often through hot weather. Most people who skip it get it again within two years.
Washing off and drying after you sweat
Always
The yeast overgrows in warm, damp, oily skin. Showering after exercise instead of sitting in damp clothing, and choosing lighter oil-free products on the chest and back, takes away the conditions it needs.
Always
The affected skin cannot tan while the skin around it can, so sun makes the contrast worse and drags out the months of waiting. Sunscreen on the chest, back and shoulders until it evens out is the only thing that genuinely shortens how long it looks obvious.
Selenium sulfide 1% shampoo, used as a body wash
Strong evidence
One of the two best over-the-counter options. Lather it over the chest, back and shoulders, leave it on for five to ten minutes, then rinse. Daily for one to two weeks, then monthly. It smells strongly and can sting, and it will discolour jewellery, so take it off first.
Strong evidence
As effective as selenium sulfide and much easier to live with — less smell, less sting, and safe on the face. Lather over the affected skin, leave five to ten minutes, rinse. Daily for one to two weeks, then monthly.
Moderate evidence
The gentlest of the three shampoos and the easiest to use every day. It is less powerful than selenium sulfide or ketoconazole for clearing an active rash, which makes it a better choice for maintenance than for the first two weeks.
Clotrimazole 1% cream
Moderate evidence
Practical only when a small area is involved — a few patches on the neck or shoulders. Twice a day for two weeks. For a whole back it is not realistic, and a shampoo is far easier.
Moderate evidence
The cream works on small patches. Worth flagging clearly: terbinafine tablets do not work for tinea versicolor, even though the cream does. If you have been given terbinafine tablets for this, it is worth asking about.
Limited evidence
It lifts the scale, which makes the skin look better and helps other treatments get through. It does not kill the yeast on its own, so it is a helper rather than a treatment.

When to See a Dermatologist

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Most tinea versicolor is treated at home with an antifungal shampoo. Book a visit if:

  • Two to four weeks of over-the-counter treatment has not changed the scale or stopped new patches appearing. Judge it by the scale, not by the colour.
  • It covers a large part of the trunk, or it is on the face.
  • It comes back every year and you would like a proper maintenance plan rather than starting from scratch each summer.
  • You are not sure it is tinea versicolor at all, especially if the patches are stark white with sharp edges. That question is worth answering, because vitiligo is treated completely differently.
  • You have a weakened immune system.

What the visit gets you: a scraping that confirms the diagnosis in a few minutes, which is worth a lot when the alternative is months of treating the wrong thing. If it is versicolor, you get a stronger topical or a short course of tablets and, more usefully, a maintenance plan that keeps it away.

What Happens at the Dermatologist?+

Tinea versicolor is usually recognised by looking, and one quick test settles any doubt.

KOH scraping. The scale is lightly scraped onto a slide, and a drop of potassium hydroxide is added. Under the microscope the yeast has a distinctive look that doctors describe as "spaghetti and meatballs" — short threads mixed with clusters of round cells. It takes a few minutes, it is done in the room, and it is the test that separates tinea versicolor from vitiligo and from the other causes of pale patches. That distinction changes everything, because vitiligo is a lifelong autoimmune condition treated in a completely different way, and no amount of antifungal shampoo will touch it.

Wood's lamp. A blue-violet light held over the skin in a darkened room. Affected areas often glow a coppery-orange or gold, and it also makes the full extent of the rash visible, including patches that are hard to see in normal light. Useful and painless, but not all cases glow, so a negative result does not rule it out. It is more helpful for mapping how much skin is involved than for making the diagnosis.

Fungal culture is not done. This is worth knowing, because it is the one place tinea versicolor differs from the other fungal skin infections. Malassezia will not grow on the standard lab plates used for ringworm and athlete's foot, so a routine fungal culture comes back negative even when the diagnosis is obvious. A negative culture here does not mean you do not have it, and asking for one adds a wait and a bill without changing anything.

A biopsy is almost never needed.

Prescription Treatments

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Used when a shampoo has not cleared it, when a lot of skin is involved, or when it keeps coming back. A short course of tablets is convenient, but it does not prevent recurrence any better than the washes do.

Topical prescriptions
Strong evidence
The prescription strength of the same shampoo, and often a single application left on for five minutes clears it. Worth asking about when the 1% version has been used properly and the scale is still there.
Topical prescriptions
Selenium sulfide 2.5% lotion
Strong evidence
The prescription strength. Applied to the affected skin for ten minutes daily for a week, or overnight once a week. Effective and cheap, but it stings, smells and can irritate, so it is used less often than ketoconazole now.
Topical prescriptions
Moderate evidence
A prescription alternative that works by a different route, useful if the azoles have irritated your skin. Effective, but not clearly better than ketoconazole.
Topical prescriptions
Moderate evidence
Another prescription azole cream, once a day for two weeks. Reasonable for limited patches, and no better or worse than the other azole creams.
Pills and injections
Strong evidence
The usual pill for widespread or stubborn tinea versicolor, typically five to seven days. It is convenient when a lot of skin is involved. It does not prevent it coming back any better than the washes do, so the maintenance wash still matters afterwards.
Pills and injections
Moderate evidence
Sometimes given as a single dose or two weekly doses. Simple and reasonably effective, though itraconazole has more evidence behind it for this particular rash.

What to Expect

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Step 1
Weeks one to two

The scale disappears and no new patches appear. This is what "working" looks like. Scratch a patch — if no powdery flake lifts off, the yeast is gone.

Step 2
The colour does not change yet

This is the part that catches everyone out. The patches stay exactly as light or dark as they were, and it is very easy to conclude the treatment failed. It did not. The yeast is dead and the pigment cells simply need time to restart.

Step 3
One to six months for the colour

The patches gradually blend back in. Pale patches on brown and Black skin take the longest, sometimes six months or more. Nothing available speeds this up meaningfully, and no cream will.

Step 4
Avoid the sun on those patches meanwhile

The affected skin cannot tan while the skin around it can, so sun makes the contrast worse and drags out the wait. Sunscreen on the chest and back until it evens out.

Step 5
It will probably come back

Most people get it again, usually the next warm season. That is the nature of it, not a failure. A maintenance wash once or twice a month is what prevents it.

Step 6
If it has not cleared after four weeks

Go and get it scraped. Either it is not versicolor, or you need a prescription strength or a short course of tablets.

Complications

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Tinea versicolor is harmless. It does not scar, it does not damage the skin, it does not spread inside the body, and it cannot be given to anyone else. What it does is look different for a long time, and that is a legitimate reason to treat it.

Long-lasting colour change
The main issue by far. Patches stay lighter or darker for one to six months after the yeast is gone, sometimes longer on brown and Black skin. It is temporary in every case, but "temporary" here means months rather than weeks.
Recurrence
Most people get it again, usually in warm weather. This is expected rather than a complication, and maintenance treatment largely prevents it.
Being mistaken for vitiligo
Not a complication of the condition, but a real cost of not getting it checked. People have spent years worrying about the wrong diagnosis, or treating vitiligo with antifungal shampoo, when a two-minute scraping would have settled it.
Irritation from treatment
Selenium sulfide and some of the shampoos sting or dry the skin, particularly if left on longer than recommended or used on the face.
Follicular versicolor
In some people, the yeast also inflames hair follicles, causing itchy small bumps on the chest and back that look like acne but do not respond to acne treatment. It needs the same antifungal treatment.

Lookalikes

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Pale or discoloured patches have several causes and they are treated very differently. The scale is the thing to look for — scratch a patch gently and see whether a fine powdery flake lifts off.

  • Vitiligo — the important one. Vitiligo patches are stark chalk-white with no pigment at all, have sharp, clearly defined borders, and have no scale whatsoever. They often appear symmetrically, and around the eyes, mouth, hands and genitals rather than on the oily chest and back. Vitiligo is autoimmune and permanent unless treated, and antifungal shampoo does nothing for it. If your patches are bright white with crisp edges, get it checked.
  • Pityriasis alba — pale, slightly scaly, poorly defined patches on the cheeks and upper arms of children, linked to eczema. Softer edges, on the face rather than the trunk, and it settles with moisturiser.
  • Post-inflammatory hypopigmentation — pale marks left where a previous rash, spot or injury was. There is a history of something being there first, and no scale.
  • Seborrheic dermatitis — caused by the same yeast, but it looks different: greasy flaky redness in the eyebrows, around the nose, in the scalp and sometimes the mid-chest, and it itches.
  • Idiopathic guttate hypomelanosis — scattered small white flecks like confetti on sun-exposed shins and forearms, in older adults. Harmless, permanent, and unrelated.
  • Pityriasis rosea — oval patches on the trunk with scale just inside the edge, usually starting with one larger patch and clearing on its own in six to twelve weeks.
  • Ringworm — a ring with a raised, active, scaly edge and a clearer middle. Tinea versicolor is completely flat with no raised rim.
  • Early leprosy — rare in most countries, but worth naming: pale patches that are numb to light touch. Numbness is not a feature of tinea versicolor at all.
FAQ+
Why are my patches still there after treatment?Because the colour change outlasts the yeast by months. Killing the yeast takes about two weeks; the pigment takes one to six months to even out. Check for scale rather than colour — if no powdery flake lifts off when you scratch, it is treated.
Is tinea versicolor contagious?No. The yeast that causes it already lives on everyone's skin. You cannot catch it from someone or give it to a partner, and you do not need separate towels.
Is it caused by poor hygiene?No. Washing more often does not prevent it and does not clear it. It is about heat, sweat and skin oil, not cleanliness.
Will it come back?Probably. Around 60 to 80 percent of people get it again within two years without maintenance treatment. Using an antifungal shampoo as a body wash once or twice a month prevents most of that.
Is it vitiligo?Almost certainly not, but it is worth confirming. Vitiligo patches are chalk-white with sharp edges and no scale, usually around the eyes, mouth and hands. Tinea versicolor patches are off-white or tan with a fine dusty scale, on the chest and back. A two-minute scraping settles it.
Does sun help or make it worse?It makes the appearance worse. The affected skin cannot tan, so tanning the skin around it increases the contrast. It does not make the infection itself worse.
Does oral terbinafine work for this?No, and this is a common mistake. Terbinafine tablets do not work against Malassezia, even though terbinafine cream applied to the skin does. If you have been given terbinafine tablets for tinea versicolor, it is worth asking about.
What about oral ketoconazole?It used to be standard and it is no longer recommended for skin conditions, because of the risk of liver injury. Itraconazole and fluconazole are used instead.
Can I put it on my face?Antifungal shampoos and creams can be used on the face, but selenium sulfide in particular stings and can irritate. Ketoconazole cream is usually the better choice there.
Why does it always come back in summer?Heat, humidity and sweat are what let the yeast overgrow. Starting a maintenance wash before the warm season, rather than after the patches reappear, is the practical answer.
Will it scar?No. It leaves no scar and no permanent mark. The colour change always resolves eventually.
Is there anything that speeds up the colour coming back?Not meaningfully. Protecting the area from sun so the surrounding skin does not darken further is the only useful step. Bleaching creams and lightening products do not help and can make the contrast worse.