Pityriasis versicolor is also known as tinea versicolor. This is a superficial fungal infection that tends to occur more commonly in spring and summer. It is caused by an organism called Pityrosporum Ovale. The condition is spread in swimming pools and by sharing clothing.
This condition presents with white or dark scaly patches involving the anterior hairline and extending downwards to involve the mid-chest and upper back region.
The patches have an overlying branny scale. The condition may be localise or widespread to involve the entire body.
The treatment depends on the extent and severity of the condition. The therapeutic options include the following:
Topical azoles eg Pevaryl spray/cream
Sodium Hyposulphite 2x day for 2 weeks
Nizoral (Ketoconazole tabs) 400mg on day1 and day 8
Oral Itraconazole – 100mg bd for 5 days and then, 100mg bd for 1 day /month for 6 months to prevent further recurrences.
The condition tends to respond well to antifungal treatments. Unfortunately, recurrences of this condition do occur. Once fully treated, this condition tends to heal with post inflammatory hyo/hyperpigmentation. With repeated exposure to the sun, the skin gradually fades into the normal skin colour.
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