What Causes Fungal Acne and How to Treat It Naturally

If you’ve tried traditional acne treatments without success — or your breakouts worsen with heavy creams or oils — you may be dealing with fungal acne. Unlike hormonal or bacterial acne, fungal acne is triggered by yeast overgrowth on the skin and requires a very different approach.

This guide explains what causes fungal acne, what it looks like, what it’s often mistaken for, and how to calm flare-ups naturally without disrupting the skin barrier.

If you’re unsure which type of acne you have, start with our overview: Types of Acne Explained: Hormonal vs Bacterial vs Fungal vs Sensitive Skin Acne .

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What Is Fungal Acne?

Fungal acne — clinically known as Malassezia folliculitis — is caused by an overgrowth of yeast that naturally lives on the skin. When conditions allow this yeast to multiply, it inflames hair follicles and creates acne-like bumps.

Unlike traditional acne, fungal acne:

• Is itchy or irritated
• Appears as small, uniform bumps
• Often clusters on the forehead, chest, back, or shoulders
• Does not respond to typical acne treatments

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What Triggers Fungal Acne Flare-Ups?

• Excess moisture and sweating
• Hot, humid environments
• Occlusive or oil-heavy skincare products
• Antibiotic use (which alters the microbiome)
• A damaged or weakened skin barrier

Barrier disruption is a key trigger — when the skin’s protective layer is compromised, yeast can overgrow more easily.

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What Can Be Mistaken for Fungal Acne?

Fungal acne is frequently confused with other skin conditions, including:

• Hormonal acne
• Bacterial acne
• Acne caused by a damaged skin barrier
• Contact dermatitis

To compare acne vs barrier damage, read: Acne vs Damaged Skin Barrier: How to Tell the Difference .

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What Is the Quickest Way to Get Rid of Fungal Acne?

The fastest relief comes from removing triggers and restoring balance — not stripping the skin.

Step 1: Simplify Your Routine

• Pause heavy oils and occlusive products
• Avoid over-cleansing or exfoliating
• Choose fragrance-free formulas

Step 2: Support the Skin Barrier

Supporting the skin barrier is a critical part of preventing fungal acne flare-ups. Gentle, fragrance-free cleansers paired with lightweight, non-comedogenic moisturizers help maintain a balanced microbiome while reducing excess moisture that yeast thrives on. Barrier-supportive formulas with ingredients like aloe, glycerin, and squalane can help calm inflammation without feeding fungal overgrowth.

For deeper barrier education, visit: Skin Barrier Repair Creams .

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How to Treat Fungal Acne During Pregnancy

Hormonal shifts during pregnancy can increase sweat, oil production, and sensitivity — all of which can trigger fungal acne.

Pregnancy-safe care focuses on:

• Gentle cleansing
• Barrier support
• Avoiding harsh actives and antibiotics unless directed by a doctor

For sensitive or reactive skin, follow: Sensitive Skin Care Routines .

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How to Treat Fungal Acne in Kids

Children can develop fungal acne, especially during hot weather or sports. Treatment should always be gentle and non-stripping.

• Avoid fragranced body washes
• Rinse sweat promptly
• Use lightweight, breathable moisturizers only if needed

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FAQ: Fungal Acne

What causes fungal acne?

Fungal acne is caused by yeast overgrowth triggered by moisture, heat, occlusive products, antibiotics, or a weakened skin barrier.

How do I know if my acne is fungal?

Fungal acne is typically itchy, uniform in size, and worsens with traditional acne treatments or heavy skincare products.

Can doxycycline cause fungal acne?

Yes. Antibiotics can disrupt the skin microbiome, allowing yeast to overgrow.

Can hormonal acne look like fungal acne?

Yes, but hormonal acne tends to be deeper, cystic, and tied to cycles, while fungal acne appears as small, itchy clusters.

References

• Cleveland Clinic — Malassezia folliculitis overview
• American Academy of Dermatology — Acne types and treatment guidance
• DermNet — Yeast-related skin conditions
• PubMed — Skin microbiome and barrier function research