Houston Pools: Are You Brewing Summer Skin Mold?

Photograph of Franklin Everett ShawBy Franklin Everett Shaw
October 31, 2025

The shimmering heat rises off the pavement, blurring the edges of your neighbor’s perfectly manicured lawn. You’re ready to dive into your backyard oasis, that sparkling pool promising sweet relief from the Houston humidity. But before you cannonball in, consider this: is that itch just chlorine, or could it be something more sinister lurking in the water?

Houston’s humid climate, combined with the popularity of backyard pools, creates a perfect breeding ground for skin mold. It’s not something anyone wants to think about, but understanding the risks and knowing how to protect yourself is crucial for enjoying your pool safely. This isn’t about fear-mongering; it’s about empowering you with the knowledge to keep your skin healthy and your pool experience enjoyable.

Skin mold, often mistaken for simple rashes or sunspots, thrives in warm, moist environments. Pools, especially those with imbalanced chemical levels, can become havens for these unwelcome guests. Identifying the problem early is key to preventing more serious complications.

So, how do you tell the difference between a harmless rash and a potential mold issue? Sunspots, caused by prolonged sun exposure, are typically flat, brown or black spots that appear on areas frequently exposed to the sun, like your face, arms, and shoulders. They don’t usually itch or cause any discomfort. Skin mold, on the other hand, often presents as raised, itchy, and sometimes scaly patches. The color can vary, ranging from red or pink to brown or even white.

One common culprit in Houston pools is Tinea versicolor, a fungal infection that causes small, discolored patches on the skin. These patches may be lighter or darker than the surrounding skin and are often more noticeable after sun exposure. Another possibility is Ringworm, despite its name, is also a fungal infection that appears as circular, raised, scaly patches with a clear center.

Now, let’s talk prevention. The first line of defense is maintaining proper pool chemistry. You can find pool testing kits at most H-E-B or Lowe’s locations in Houston. Regularly test your pool water and adjust the pH, chlorine, and alkalinity levels according to the manufacturer’s instructions. Aim for a pH between 7.2 and 7.8, and a chlorine level between 1 and 3 ppm.

Beyond water chemistry, consider your post-swim routine. Showering immediately after getting out of the pool is crucial. Use an antifungal soap, readily available at H-E-B, especially if you’re prone to skin issues. Dry yourself thoroughly, paying particular attention to areas like your armpits, groin, and between your toes. These are prime spots for mold to flourish.

What if, despite your best efforts, you suspect you have a skin mold issue? For mild cases, you can often treat it at home. Over-the-counter antifungal creams, like those containing clotrimazole or miconazole, are available at any Houston pharmacy. Apply the cream to the affected area as directed, usually twice a day for several weeks.

However, there are times when home treatment isn’t enough. If the rash doesn’t improve after a week or two of using over-the-counter medication, or if it spreads, becomes more painful, or shows signs of infection (like pus or drainage), it’s time to see a dermatologist. Houston has many excellent dermatologists who can diagnose the specific type of skin mold and prescribe stronger antifungal medications if needed.

Don’t delay seeking professional help. Untreated skin mold can lead to more serious infections and even scarring. A dermatologist can also rule out other potential causes of your skin rash, such as eczema or psoriasis.

One common mistake Houston pool owners make is neglecting to clean their pool equipment. Mold can grow on pool liners, filters, and even toys. Regularly scrub these items with a diluted bleach solution (1 part bleach to 10 parts water) to kill any mold spores.

Another pitfall is relying solely on chlorine to keep your pool clean. While chlorine is effective at killing many bacteria and viruses, it’s not a foolproof solution for mold. Regular shocking of your pool, using a higher dose of chlorine, can help to eliminate stubborn mold spores.

Consider using a pool algaecide as a preventative measure. Algaecides can help to prevent the growth of algae, which can create a favorable environment for mold. Look for algaecides that are specifically designed for use in pools and follow the manufacturer’s instructions carefully.

Remember, prevention is always better than cure. By maintaining proper pool chemistry, practicing good hygiene, and regularly cleaning your pool equipment, you can significantly reduce your risk of developing skin mold. So, go ahead and enjoy your Houston pool, but do so with knowledge and caution. Your skin will thank you for it.

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