Austin Acne: Texas Sunscreen Brewing Pore Fungus?

By Franklin Everett Shaw

December 16, 2025

That persistent, itchy rash that just won’t quit? It might not be what you think. In the sweltering Austin heat, many residents are battling a skin condition often mistaken for regular acne: Malassezia folliculitis, more commonly known as “fungal acne.” And the culprit? Often, it’s our best friend in the Texas sun: sunscreen.

Malassezia folliculitis thrives in warm, humid environments, making Austin a prime breeding ground. The fungus, Malassezia, is a normal resident of our skin, but when trapped under layers of sunscreen, sweat, and oil, it can overgrow and cause inflammation in the hair follicles. This leads to those tiny, itchy bumps that can be incredibly frustrating.

So, how do you know if you’re dealing with fungal acne and not the bacterial kind? Bacterial acne typically features larger, more inflamed pimples, often with blackheads or whiteheads. Fungal acne, on the other hand, presents as small, uniform bumps, often itchy, and frequently appearing on the chest, back, and upper arms, in addition to the face. It’s like a relentless sandpaper texture.

The first step is prevention. In Austin, this means rethinking your sunscreen strategy.

• Choose wisely: Opt for oil-free, non-comedogenic sunscreens. These are less likely to clog pores and create a breeding ground for Malassezia. Look for sunscreens specifically formulated for acne-prone skin.
• Consider mineral sunscreens: Mineral sunscreens containing zinc oxide or titanium dioxide are generally less irritating and less likely to feed the fungus than chemical sunscreens. EltaMD UV Clear Broad-Spectrum SPF 46 is a popular choice, often available at Austin-area dermatologists’ offices and online.
• Apply strategically: Don’t slather on excessive amounts of sunscreen. A thin, even layer is sufficient. Reapply as needed, especially after swimming or sweating, but avoid constant reapplication if you’re not actively exposed to the sun.
• Cleanse thoroughly: After a day in the sun, double cleanse your skin. Use an oil-based cleanser first to remove sunscreen and makeup, followed by a gentle, water-based cleanser to remove any residue. This is crucial to prevent pore clogging.
• Shower immediately after sweating: Don’t let sweat and sunscreen linger on your skin. Shower as soon as possible after exercising or spending time outdoors. Use an antifungal body wash a few times a week.

But what if the fungal acne has already taken hold? Don’t despair. Several over-the-counter treatments can help.

• Antifungal washes: Look for body washes containing ketoconazole or selenium sulfide. Nizoral Anti-Dandruff Shampoo (containing ketoconazole) can be used as a face and body wash a few times a week. Leave it on for 5-10 minutes before rinsing thoroughly. Selsun Blue (containing selenium sulfide) is another option, readily available at HEB and Walgreens across Austin.
• Topical antifungals: Clotrimazole cream, available over-the-counter, can be applied to affected areas. Apply a thin layer twice daily after cleansing.
• Salicylic acid: While not directly antifungal, salicylic acid helps to exfoliate the skin and unclog pores, which can help to reduce the severity of fungal acne. Look for salicylic acid cleansers or spot treatments.
• Avoid oil-based products: Temporarily discontinue the use of oil-based cleansers, moisturizers, and makeup. These can exacerbate fungal acne.

A common mistake is treating fungal acne with traditional acne treatments. Benzoyl peroxide and salicylic acid can sometimes help, but they primarily target bacteria, not fungus. Using these treatments alone on fungal acne can be ineffective and even irritating.

Another pitfall is inconsistent treatment. Fungal acne can be stubborn, and it may take several weeks to see improvement. Be patient and consistent with your treatment regimen.

Lifestyle adjustments are also key to managing fungal acne in Austin’s climate.

• Wear loose-fitting clothing: Tight clothing can trap sweat and create a humid environment that promotes fungal growth. Opt for loose-fitting, breathable fabrics like cotton or linen.
• Shower frequently: Showering twice a day, especially after sweating, can help to keep your skin clean and prevent fungal overgrowth.
• Manage humidity: Use a dehumidifier in your home, especially in your bedroom, to reduce humidity levels.
• Diet: While not a direct cause, some believe that a diet high in sugar and refined carbohydrates can contribute to fungal overgrowth. Consider reducing your intake of these foods.

When should you seek professional help? If your fungal acne is severe, persistent, or doesn’t respond to over-the-counter treatments, it’s time to see a dermatologist. Austin has many excellent dermatologists who specialize in treating fungal skin conditions.

• Prescription antifungals: A dermatologist can prescribe stronger antifungal medications, such as oral itraconazole or fluconazole, or topical ketoconazole cream.
• Diagnosis confirmation: A dermatologist can perform a skin scraping to confirm the diagnosis of Malassezia folliculitis and rule out other skin conditions.
• Personalized treatment plan: A dermatologist can develop a personalized treatment plan tailored to your specific skin type and condition.

Some Austin dermatologists known for their expertise in acne and fungal skin conditions include those at Westlake Dermatology and the Austin Diagnostic Clinic. Don’t hesitate to seek their expertise if you’re struggling to manage your fungal acne.

Living in Austin means embracing the sun, but it also means taking extra precautions to protect your skin. By understanding the causes of fungal acne, choosing the right sunscreens, adopting a consistent skincare routine, and making appropriate lifestyle adjustments, you can keep your skin clear and healthy, even in the Texas heat. Remember, consistency and patience are key. Don’t give up, and you’ll be on your way to clearer, healthier skin.