Know about Tinea versicolor
Tinea versicolor is also called as a pityriasis versicolor is a skin eruption on the trunk and proximal extremities. Tinea versicolor is a fungal infection of the skin. Yeasts which normally found on the human skin become troublesome grows out of control, which appears as a rash. This yeasts may become trouble some in certain curcumstances like having oily skin, when lives under hot climate, due to lot of sweat, having weak immune system.
Causes : Tinea versicolor are mainly caused by fungus like Malassezia globosa, sometime by Malassezia furfur
Signs and symptoms
- White, pink, red, or brown patches on skin which may be lighter or darker
- Spots or commonly seen on neck, chest, back and arms.
- Spots also may occurs in different parts of the body
- Spots that do not tan
- Spots sometimes may be dry and scaly
- Spots may itchy or hurt
The spots may disappear during cool weather and get worse during warm and humid weather.
Risk factors associated with Tinea versicolor
- family history
- humid and warm climate
- excessive sweating
- some types of cancer
- medications which weaken the immune system
- Basically tinea versicolor diagnosied by rashes, on focussing uv light ray affected areas appear a fluorescent yellow-green
- Tinea versicolor may be diagnosed by a potassium hydroxide (KOH) preparation and lesions may fluoresce copper-orange when exposed to Wood’s lamp
- The differential diagnosis for tinea versicolor infection includes
- Progressive macular hypomelanosis
- Pityriasis alba
- Pityriasis rosea
- Seborrheic dermatitis
- Post-inflammatory hypopigmentation
- Tinea versicolor are treated by applying particular creams, lotions, or shampoos.
- Topical antifungal medications containing selenium sulfide are often recommended.
- ketoconazole or fluconazole in a single dose, or ketoconazole for seven days, or itraconazole can be used as Oral antifungals