Pityrosporum Folliculitis

What is Pityrosporum Folliculitis?

Pityrosporum Folliculitis (also called Malassezia Folliculitis) is a skin condition caused by the overgrowth of yeast (Malassezia) in hair follicles. It often looks like acne but is not caused by bacteria, and is common on the chest, back, shoulders, and sometimes face.

Causes

• Overgrowth of Malassezia yeast – naturally present on the skin.
• Hot and humid climates – encourage yeast proliferation.
• Oily or sweaty skin – excess sebum promotes yeast growth.
• Use of occlusive skincare products – heavy creams or oils.
• Antibiotic use – disrupts skin microbiome and may trigger yeast overgrowth.
• Weakened immune system – more susceptible to fungal overgrowth.
• Hormonal changes – may exacerbate outbreaks.

Symptoms / Appearance

• Small, itchy, red or flesh-colored bumps (papules) around hair follicles.
• Pustules resembling acne, often on the chest, back, shoulders, and upper arms.
• Clusters of bumps that may spread.
• Pruritus (itchiness) is a distinguishing feature from typical acne.
• Often does not respond to traditional acne treatments.

Treatments

Medical Treatments

• Topical antifungals – ketoconazole, clotrimazole, or selenium sulfide.
• Oral antifungals – fluconazole or itraconazole for widespread or resistant cases.
• Anti-inflammatory skincare – mild corticosteroids may reduce irritation temporarily.

At-Home & Skincare Support

• Use non-comedogenic, oil-free products.
• Shower after sweating to reduce yeast growth.
• Wear breathable fabrics to minimise trapped moisture.
• Avoid heavy oils or occlusive creams on affected areas.

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Prevention

• Regular cleansing with antifungal or gentle cleansers.
• Avoid excessive sweating or heat exposure when possible.
• Rotate and avoid heavy skincare products that can block follicles.
• Prompt treatment of mild outbreaks to prevent spreading.
• Maintain a healthy immune system through diet, sleep, and stress management.

FAQs

Q1. Is pityrosporum folliculitis contagious?
No – it is caused by yeast that naturally lives on the skin, not by person-to-person contact.

Q2. How is it different from acne?
Unlike acne, it is itchy, caused by yeast, and does not respond to antibiotics.

Q3. Can it recur?
Yes – recurrence is common, especially in hot, humid conditions.

Q4. Can lifestyle changes help?
Yes – reducing sweat, using non-comedogenic products, and wearing breathable clothing can help prevent flares.

Q5. How long does treatment take?
Mild cases may clear in 2–4 weeks with topical antifungals; more severe cases may require oral therapy for 4–8 weeks.