Tinea Versicolor (Pityriasis Versicolor, Sweat Stain)

Tinea Versicolor
Body Parts: Upper Limbs Chest Back Waist
Medical Subjects: Skin

What Is Tinea Versicolor

What is tinea versicolor?

Tinea versicolor, also known as pityriasis versicolor and sweat spot, is a skin disease caused by Malassezia (a common fungus).

It is often manifested as scattered tan or red or white patches on the trunk or upper limb with or without a feeling of pruritus.

Treatment includes topical and oral antifungal agents. It is easy to relapse and difficult to cure, which will bring adverse effects to the life and spirit of patients.

Is tinea versicolor common?

This disease is very common, especially in summer.

Because the susceptible factors of this disease include humid and sultry environment and excessive sweating of the human body, many people visit hospitals in summer.


What Is The Cause Of Tinea Versicolor

What reason is tinea versicolor caused?

Tinea versicolor is caused by the superficial fungus Malassezia.

Malassezia is the normal flora on the skin, and when it is converted into the pathogenic hyphal form, it can lead to the occurrence of skin diseases, such as tinea versicolor.

Tinea versicolor is easy to happen in which crowd?

  • People with excessive sweating, oily skin and often in a hot and humid environment are vulnerable to this disease.

  • Low immunity, such as malnutrition, diabetes, cancer, long-term oral immunosuppressive agents, also easy to suffer from tinea versicolor.

  • In addition, studies have found that the disease has a genetic susceptibility, which means that some people even without the above susceptibility factors, but also prone to tinea versicolor.

Is tinea versicolor contagious?

Tinea versicolor is a disease caused by fungal infection, but it is not contagious.

Because malassezia, the causative agent of tinea versicolor, is the normal flora of the skin, it is found in everyone. Only when the human body is often in a hot and humid environment, sweaty, and low immunity, will Malassezia become a pathogenic hyphal form and eventually cause disease. Normal people do not develop the disease even if they are exposed to malassezia.

Does tinea versicolor meet heredity?

Tinea versicolor is not hereditary, but it has genetic susceptibility. If there is tinea versicolor patient in the family, the morbidity risk of other family members is higher than that of ordinary people.


What Symptom Does Tinea Versicolor Have

What are the common manifestations of tinea versicolor?

Tinea versicolor is often manifested as brown or red or white patches scattered on the trunk or upper limb, and the surface of rash is often covered with fine scales. The patients often have no obvious symptoms, and some patients have itchy sensation.

Tinea versicolor can cause what serious consequence?

  • Tinea versicolor often occurs in the trunk and upper limb parts, and many patients will have pigment changes after treatment, which can last for several months and have a greater impact on the appearance.

  • Without active treatment, the rash can gradually widen and increase, spreading to the entire chest and back.

  • Tinea versicolor is prone to repeated attacks, which brings certain impacts to life and spirit.


How To Check Whether Having Tinea Versicolor

How is tinea versicolor diagnosed?

  • A diagnosis can be made by an experienced dermatologist after observing the rash.

  • In cases with atypical presentation, fungal microscopy as well as Wood's lamp examination can help the physician to diagnose tinea versicolor.

Why should tinea versicolor do fungal microscopic examination and wood lamp examination? What are the precautions?

In the case of a diagnosis of tinea versicolor, a microscopic examination of the fungus as well as a Wood light examination may be performed.

  • Microscopic examination of fungi: Some scales were scraped from the skin lesion for examination, without trauma or pain. Microscopic examination of the fungi allows the presence of Malassezia in the dander to be observed directly by a physician under a microscope, which takes approximately 20 minutes to produce the result. In order to improve the accuracy of the examination, it is recommended to avoid external drugs, especially antifungal drugs, for at least 3–5 days before the examination. Positive examination can generally be diagnosed tinea versicolor.

  • Wood lamp examination (wood lamp): When the skin is irradiated with Wood lamp, the skin lesions of tinea versicolor will show yellow to yellow-green fluorescence. This examination is also atraumatic and painless, and the results can be obtained in a few minutes, which is very convenient.

Tinea versicolor is easy to mix with what disease? How?

Tinea versicolor is easily confused with the following diseases:

  • Vitiligo: The manifestation of vitiligo is complete depigmentation and rash. The color is whiter. Any part of the body can develop the disease. The fungal examination is negative, and it shows porcelain-white fluorescence under wood lamp.

  • Pityriasis rosea: Pityriasis rosea is mainly manifested as multiple rose-colored macula on the trunk, with ringlike fine scales, and negative fungal examination.


How To Prevent Tinea Versicolor

How does tinea versicolor prevent relapse?

The risk of recurrent tinea versicolor can be reduced by paying attention to personal hygiene, using zinc pyrithione soap for bathing frequently, or using external antifungal drugs for preventive treatment once a month.


How To Treat Tinea Versicolor

Which branch should tinea versicolor see?

Dermatological visit.

Does tinea versicolor have to be treated? Can you help yourself?

Tinea versicolor needs treatment, and failure to actively treat it or incorrect treatment may result in disease development and long-term non-cure.

How to treat tinea versicolor?

  • The most common and the simplest method is external antifungal drug treatment, such as terbinafine, bifonazole, ketoconazole and other ointment, choose one. It needs to be applied externally twice a day for continuous more than 2 weeks. At the same time also can cooperate with the use of antifungal lotion, such as ketoconazole, selenium disulfide lotion, bath use.

  • Some rash pan hair or refractory rash patients, can also be combined with oral antifungal drugs treatment, such as itraconazole, generally 0.2 g per day, 5 days in a row. However, medication should be taken after evaluation by a dermatologist to avoid self-medication.

What common adverse reactions does the remedial drug of tinea versicolor have?

The topical medicine for the treatment of tinea versicolor is relatively safe, except that a very few people will have such allergic symptoms as burning sensation and swelling after using the ointment, and most people use it without obvious side effects.

Oral medications may have more side effects than topical medications:

  • May have a certain irritation to the gastrointestinal tract, including nausea, decreased appetite, etc.;

  • It may affect liver and kidney function, so patients with liver and kidney dysfunction or hepatitis need to be cautious about using;

  • Allergic reaction may occur;

  • May interact with other oral medications, etc.

Therefore, the selection of oral medication needs to be evaluated and guided by a professional doctor.

Can tinea versicolor cause other diseases?

Patients with tinea versicolor may still have residual pigment changes after treatment, which may take months to gradually recover.

Can tinea versicolor be cured completely?

It is difficult to eliminate the triggering factors of tinea versicolor and to completely cure it. The recurrence rate is quite high.


What Should Tinea Versicolor Patient Notice In Life

What should tinea versicolor patient notice in life?

Hot weather in summer, sweating more, so must pay attention to prevent the recurrence of tinea versicolor:

  • Pay attention to personal hygiene, especially pay attention to the skin clean, sweat to clean the skin in time.
  • Wash clothes in time to ensure personal and living environment clean.
  • Pay attention to strengthen nutrition, improve the body's resistance.
  • Timely treat other chronic diseases such as diabetes.

What should notice on tinea versicolor patient diet?

Patients with tinea versicolor have no special taboos on diet, and a healthy and balanced diet is enough.

  • Pay attention to less salt when cooking, less oil, less high salt seasoning, eat less pickled vegetables, pickled meat, etc.;

  • Don't only eat refined rice and white flour as the main food; coarse grains, miscellaneous beans, potatoes, and pumpkins can be used to replace some of the main food.

  • Reasonable collocation of meat and vegetable, meat preferred chicken, duck, fish and other white meat, eat less fat, eggs, milk is an important source of protein and other nutrients;

  • If you are a vegetarian, you can eat more beans and soy products to supplement protein;

  • Eat more fresh fruits and vegetables;

  • Quit smoking and try not to drink alcohol.

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