Pityriasis Versicolor

Patient Information Sheet: Pityriasis Versicolor

What is Pityriasis Versicolor?
Pityriasis versicolor, also known as tinea versicolor, is a common fungal infection of the skin. It is caused by the overgrowth of a yeast-like fungus called Malassezia, which is normally found on the skin surface. Pityriasis versicolor is characterised by patches of discolored skin that may be lighter or darker than the surrounding skin, and it often occurs on areas of the body exposed to sunlight.

What Causes Pityriasis Versicolor?
Pityriasis versicolor occurs when the Malassezia fungus proliferates and disrupts the normal pigmentation of the skin. Several factors can contribute to the development of this condition, including:

  • Hot and humid weather conditions
  • Excessive sweating
  • Oily skin or seborrheic dermatitis
  • Hormonal changes, such as those occurring during puberty or pregnancy
  • Weakened immune system

What are the Symptoms of Pityriasis Versicolor?
The symptoms of pityriasis versicolor may include:

  • Patches of skin that appear lighter or darker than the surrounding skin
  • Scaling or flaking of the affected skin
  • Itching, although this is not always present
  • The patches may merge together to form larger areas of discoloration
  • The affected skin may become more noticeable after sun exposure, as the surrounding skin darkens

How is Pityriasis Versicolor Diagnosed?
Pityriasis versicolor is usually diagnosed based on the characteristic appearance of the skin patches. In some cases, a healthcare provider may perform a skin scraping or use a Wood’s lamp (a special ultraviolet light) to help confirm the diagnosis. The affected skin may fluoresce under the Wood’s lamp, appearing yellow-green or coppery in color.

How is Pityriasis Versicolor Treated?
Treatment for pityriasis versicolor typically involves antifungal medications to eliminate the Malassezia fungus and prevent recurrence. Treatment options may include:

  • Topical antifungal creams, lotions, or shampoos applied directly to the affected skin.
  • Oral antifungal medications for severe or recurrent cases
  • Maintenance therapy with antifungal medications to prevent recurrence
  • Avoiding potential triggers such as excessive sweating or oily skin
  • Using medicated shampoos containing selenium sulfide or ketoconazole to treat involvement of the scalp and hairline. Apply on to the scalp and leave on for at least 5 minutes before washing off.

Plan

  1. Spring time – Pevryl Wash 3 nights in a row.
  2. Nizoral 2% shampoo as a body wash once a week in summer.
  3. Hydrozole cream to treat any active areas.
  4. Minimise sun exposure to reduce colour difference.
  5. May require systemic medications if severe.

What Can I Do to Manage Pityriasis Versicolor?
In addition to medical treatment, there are several self-care measures that may help manage pityriasis versicolor and reduce the risk of recurrence:

  • Keep the affected skin clean and dry, and avoid excessive sweating
  • Wear loose-fitting clothing made of breathable fabrics
  • Avoid using oily or greasy skin products, as these can exacerbate the condition
  • Protect the skin from excessive sun exposure, as sunlight can worsen the appearance of the patches

In Conclusion:
Pityriasis versicolor is a common fungal infection of the skin caused by the overgrowth of the Malassezia fungus. While it can be bothersome, especially due to its cosmetic appearance, effective treatment options are available to manage the condition and prevent recurrence. By following medical advice and adopting healthy skin care habits, you can effectively manage pityriasis versicolor and improve the appearance of your skin. If you have any concerns or questions about pityriasis versicolor, don’t hesitate to discuss them with your healthcare provider.