Tinea versicolor is a fungal infection of the skin. It’s also called pityriasis versicolor and is caused by a type of yeast that naturally lives on your skin. When the yeast grows out of control; a rash is the result.
The tinea versicolor fungal infection can happen for any of the following reasons:

  • You have oily skin
  • You live in a hot climate
  • You sweat a lot
  • You have a weak immune system

Because the yeast grows naturally on your skin, the tinea versicolor fungus is not contagious. The condition can affect people of any skin color. It’s more likely to affect teens and young adults.

Signs and Symptoms
Acidic bleach from the growing yeast causes areas of skin to be a different color than the skin around them. These can be individual spots or patches. Specific signs and symptoms of the infection include:

  • Patches that may be white, pink, red, or brown and can be lighter or darker than the skin around them.
  • Spots that do not tan the way the rest of your skin does.
  • Spots that may occur anywhere on your body but are most commonly seen on your neck, chest, back, and arms.

The spots may disappear during cool weather and get worse during warm and humid weather. They may be dry and scaly and may itch or hurt, although this is not common.

Pityriasis Versicolor Treatment

  • Ketoconazole 200mg – 2 pills at the start of treatment then 2 pills taken two weeks later (Itraconazole 100mg may be used also)
  • The effectiveness of this pityriasis versicolor treatment may be enhanced by working up a sweat 1 to 2 hours after taking the pills, as the medicine is secreted in the sweat.
  • Selenium Sulfide 2.5% or Nizoral 2% shampoo applied to entire neck, trunk, arms, and scalp.
  • Leave on body for 10 minutes and rinse off.
  • Repeat the shampoo regimen each day for 3 days, then once a week for 6 weeks.
  • To prevent recurrence wash with the above shampoo once a month for one to two years.

Note: It may take months for the skin color to return to normal