We all have yeast living on the surface of our skin. When it is hot and humid, yeast tend to grow more quickly. An overgrowth of yeast can cause tinea versicolor, a common skin condition. TV may also be referred to as a common fungal infection because yeast is a type of fungus. It is not contagious.
A dermatologist can diagnose TV by examining the skin. He may scrape a bit of scale from the affected skin and look under a microscope to confirm it is a TV.Another way to confirm the condition is to use a special device called a Wood’s lamp. The doctor will hold the lamp about 4-5 inches from the affected skin. A TV skin will appear yellowish green in color.
Factors considering treatment for TV include the location of the infection, the severity, the weather, and the patient’s wishes. Treatments may include:
Medicated shampoos, soaps, creams, and lotions are frequently used to treat TV. The active ingredient in these medications is usually selenium sulfide, ketoconazole, or pyrithione zinc. They help to keep the yeast under control.
TV can return when it is warm and humid outdoors. Using a medicated cleanser once or twice a month especially during these weather conditions can help.
If the infection is severe, covers a large area of the body, or frequently returns, you may be prescribed anti-fungal pills. It can come with several side effects and interactions, so you need doctor’s close supervision.
Although the yeast is easy to kill, it can take weeks or months for the skin to return to its normal color. Just because the skin is lighter does not mean the infection is still there. The skin just needs some incidental sun exposure to stimulate pigment production in the skin. Protecting the skin from the sun and not tanning will help the skin tone even out more quickly and safely.
If you live in warm and humid area, the dermatologist can give you more tips to help prevent TV from returning.
All content solely developed by the American Academy of Dermatology.