If your breakouts are not responding to traditional acne treatments, you may need to learn how to treat fungal acne. Fungal acne, clinically known as Malassezia folliculitis or pityrosporum folliculitis, is not actually acne at all. It is a fungal infection of the hair follicles caused by an overgrowth of Malassezia yeast, a type of fungus that naturally lives on human skin.
Understanding how to treat fungal acne starts with recognizing that it requires a completely different approach than bacterial acne. Standard acne treatments like benzoyl peroxide and antibiotics will not work and may actually make fungal acne worse. This guide explains the correct treatments, backed by dermatological research and NIH-published studies.
What Is Fungal Acne and What Causes It?
Fungal acne occurs when Malassezia yeast, which normally exists on the skin in small amounts, overgrows and infects hair follicles. This overgrowth triggers an inflammatory response that produces small, uniform bumps that look similar to traditional acne but have different characteristics.
According to research published in the NIH’s National Library of Medicine, several factors contribute to Malassezia overgrowth:
- Hot, humid environments: Malassezia thrives in warm, moist conditions. Fungal acne is more common in tropical climates and during summer months.
- Excessive sweating: Athletes and people who sweat heavily are at higher risk. Wearing sweaty clothing for extended periods creates an ideal environment for yeast growth.
- Antibiotic use: Antibiotics kill bacteria that normally keep Malassezia in check, allowing the yeast to overgrow. This is why fungal acne often appears during or after antibiotic treatment for bacterial acne.
- Immunosuppression: Weakened immune systems from illness, medications, or chronic conditions increase susceptibility.
- Occlusive skincare products: Heavy moisturizers, oils, and foundations that contain fatty acids and esters can feed Malassezia yeast.
- Tight, non-breathable clothing: Synthetic fabrics that trap heat and moisture against the skin promote fungal growth.
The CDC notes that fungal skin infections are among the most common dermatological conditions worldwide, though Malassezia folliculitis is frequently misdiagnosed as bacterial acne.
How to Identify Fungal Acne vs Regular Acne
Distinguishing fungal acne from bacterial acne is essential because the treatments are completely different:
Fungal acne characteristics:
- Small, uniform bumps that are roughly the same size (1-2 mm)
- Often appears on the chest, back, shoulders, and forehead
- Itchy (regular acne is usually not itchy)
- Does not produce large cysts or varied-size pimples
- Often appears in clusters
- Does not respond to traditional acne treatments
- May worsen with antibiotics
- Frequently appears after heavy sweating or in hot weather
Regular (bacterial) acne characteristics:
- Varied sizes of lesions: blackheads, whiteheads, papules, pustules, cysts
- Primarily on the face, though can appear on the body
- Not typically itchy
- Responds to benzoyl peroxide, retinoids, and antibiotics
- Often related to hormonal fluctuations
A dermatologist can confirm the diagnosis by examining a skin scraping under a microscope or performing a Wood’s lamp examination. If you suspect fungal acne, a consultation with a dermatologist through telehealth for acne can provide a convenient path to diagnosis.
Antifungal Treatments That Work
The cornerstone of treating fungal acne is antifungal medication, both topical and sometimes oral:
Over-the-counter topical antifungals:
- Ketoconazole 2% shampoo (Nizoral): This is the most widely recommended first-line treatment. Apply it to affected areas as a body wash, leave it on for 3-5 minutes before rinsing, and use it daily for 2-4 weeks. Studies in the NIH database show significant improvement with this approach.
- Selenium sulfide shampoo (Selsun Blue): Another effective antifungal wash. Use as a body wash or leave-on treatment for 5-10 minutes before rinsing.
- Zinc pyrithione soap or shampoo (Vanicream Z-Bar, Head and Shoulders): Has both antifungal and anti-inflammatory properties. Can be used daily as a body cleanser.
- Clotrimazole 1% cream (Lotrimin): Apply to affected areas twice daily. Available without prescription.
- Miconazole 2% cream: Another OTC antifungal option applied twice daily.
Prescription treatments:
- Ketoconazole 2% cream (prescription strength): Applied once or twice daily for 2-4 weeks.
- Oral fluconazole: For resistant cases, a dermatologist may prescribe oral fluconazole (typically 150-200 mg per week for 2-4 weeks). NIH research shows oral antifungals are highly effective for widespread or stubborn Malassezia folliculitis.
- Oral itraconazole: Another oral antifungal option, typically prescribed as 200 mg daily for 1-2 weeks.
Treatment timeline: Most people see improvement within 1-2 weeks of starting antifungal treatment, with significant clearing by 4 weeks. However, fungal acne has a high recurrence rate, so maintenance treatment is usually necessary.
Skincare Routine for Fungal Acne
Many common skincare ingredients feed Malassezia yeast. Adjusting your skincare routine is critical for treatment and prevention:
Ingredients to avoid:
- Fatty acids: oleic acid, lauric acid, palmitic acid, stearic acid
- Fatty acid esters: isopropyl myristate, isopropyl palmitate
- Oils: coconut oil, olive oil, and most plant oils (some exceptions below)
- Fermented ingredients: galactomyces, saccharomyces ferment filtrates
- Polysorbates (especially polysorbate 80)
Safe ingredients:
- Squalane (not squalene)
- Mineral oil
- MCT oil (C8/C10 caprylic/capric triglycerides only)
- Glycerin
- Hyaluronic acid
- Niacinamide
- Salicylic acid (BHA, which is both safe for fungal acne and helps unclog pores)
- Azelaic acid
- Sulfur-based treatments
Recommended routine:
- Cleanser: Fungal-safe gentle cleanser or antifungal wash
- Treatment: Salicylic acid or azelaic acid serum
- Moisturizer: Lightweight, fungal-safe formula (gel-based moisturizers are usually safer)
- Sunscreen: Mineral sunscreen with zinc oxide (avoid chemical sunscreens with problematic emollients)
Lifestyle Changes to Prevent Recurrence
Because fungal acne frequently recurs, ongoing lifestyle modifications are essential:
Clothing and hygiene:
- Shower immediately after sweating or exercising
- Change out of sweaty clothing promptly
- Wear loose, breathable fabrics (cotton or moisture-wicking synthetics)
- Wash workout clothes after every use
- Use a fresh towel each time you shower
Maintenance antifungal treatment:
- Use ketoconazole or selenium sulfide wash once weekly as a preventive measure after the active infection clears
- Apply antifungal cream to prone areas before workouts in hot weather
Diet considerations: While research is limited, some dermatologists suggest that reducing sugar and simple carbohydrate intake may help, as yeast feeds on sugar. The NIH notes that dietary sugar can influence fungal growth, though the direct link to Malassezia folliculitis is not firmly established.
For more health condition management advice, explore our conditions guide.
Common Mistakes That Make Fungal Acne Worse
Avoid these common errors when treating fungal acne:
- Using antibiotics: Oral or topical antibiotics kill competing bacteria, giving Malassezia more room to grow. If you are on antibiotics for another condition, discuss fungal acne risk with your doctor.
- Applying benzoyl peroxide only: While benzoyl peroxide has some antifungal properties, it is primarily antibacterial and is not sufficient to treat fungal acne on its own.
- Using heavy moisturizers and oils: Many popular skincare products contain ingredients that feed Malassezia yeast.
- Picking or squeezing bumps: This can cause secondary bacterial infection and scarring without resolving the underlying fungal issue.
- Stopping treatment too early: Fungal acne often requires 4-6 weeks of treatment and ongoing maintenance to prevent recurrence.
Frequently Asked Questions
Can fungal acne go away on its own?
Fungal acne rarely resolves without treatment. While it may temporarily improve in cooler, drier weather, it typically returns when conditions favor Malassezia growth. Antifungal treatment is almost always necessary for complete clearance.
How long does it take to clear fungal acne?
With proper antifungal treatment, most people see noticeable improvement within 1-2 weeks and significant clearing within 4-6 weeks. Severe or widespread cases may take longer. Maintenance treatment is usually needed to prevent recurrence.
Can you have fungal acne and regular acne at the same time?
Yes. It is common to have both Malassezia folliculitis and bacterial acne simultaneously. This is one reason fungal acne is often missed. If your acne only partially responds to standard treatments, the remaining bumps may be fungal. A dermatologist can help distinguish between the two conditions.
Is fungal acne contagious?
No. Malassezia yeast is a normal part of the skin microbiome that everyone carries. Fungal acne results from overgrowth of your own skin yeast, not from exposure to someone else’s infection. However, sharing unwashed towels or clothing can transfer excess yeast and potentially worsen symptoms.
Does tea tree oil help fungal acne?
Tea tree oil has some antifungal properties and may provide mild benefit. However, it is not as effective as ketoconazole or other proven antifungals for Malassezia specifically. It can also irritate sensitive skin. Use it cautiously and diluted, and do not rely on it as a primary treatment.
Treat the Root Cause, Not Just the Symptoms
Learning how to treat fungal acne effectively means understanding that this condition requires antifungal solutions, not traditional acne treatments. Start with an over-the-counter antifungal wash like ketoconazole shampoo, adjust your skincare routine to avoid yeast-feeding ingredients, and maintain preventive habits to keep the condition from returning. If over-the-counter treatments do not produce results within 4 weeks, see a dermatologist for prescription options and confirmation of your diagnosis.