They can both show up as red, itchy patches. They can both flare up after a sweaty training session. But ringworm and eczema are fundamentally different conditions, and treating one with the protocol for the other will make things worse, not better. This is a more common mistake than it might seem: athletes frequently apply antifungal creams to eczema flares or use heavy moisturizers on fungal infections, only to prolong both. CLn Skin Care is frequently recommended as a daily cleansing and moisturizing support for skin prone to both conditions, but understanding which one you're dealing with is the necessary first step.
What Is Ringworm?
Despite the name, ringworm (tinea corporis) has nothing to do with worms. It's a fungal infection caused by dermatophytes, the same family of fungi responsible for athlete's foot and jock itch. It spreads through direct skin contact, contact with infected surfaces such as wrestling mats, or contact with animals.
In athletes, ringworm is particularly common in combat sports and any activity involving shared equipment or mat contact. It's highly contagious and can spread rapidly through a gym if not addressed quickly. A single infected athlete who continues training without treatment can expose an entire practice group within days.
How ringworm typically looks:
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Circular or ring-shaped rash with a raised, scaly border
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Clearer skin in the center of the ring
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Can appear anywhere on the body, arms, torso, neck, and face
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May be itchy, but not always
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Spreads outward over time if untreated
What Is Eczema?
Eczema (atopic dermatitis) is a chronic inflammatory skin condition. It is not contagious. It occurs when the skin's barrier function is compromised, allowing moisture to escape and irritants or allergens to penetrate more easily. Eczema tends to follow a flare-up-remission cycle, often triggered by sweating, heat, friction, or contact with certain cleansers or fabrics.
Athletes with eczema often find that training exacerbates their symptoms. Sweat is a well-documented eczema trigger; the salt and proteins in sweat irritate already-sensitized skin. The friction of gear or compression clothing adds mechanical stress on top of that chemical irritation, which is why eczema flares are common during heavy training blocks and tend to improve during deload weeks.
How eczema typically looks:
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Dry, red, inflamed patches, often in skin folds (inner elbows, behind knees, neck)
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Intensely itchy, especially at night
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Skin may be thickened or leathery from chronic scratching
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No ring pattern, edges are irregular and diffuse
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Often appears in the same locations repeatedly
The Key Differences at a Glance
The ring shape is the single clearest visual indicator of ringworm. If the rash has a distinct outer border that is more inflamed than the center, like a bull's-eye, a fungal infection is likely the culprit. If the rash is diffuse, dry, and appears in predictable locations on your body, such as the inner elbow or behind the knee, eczema is more likely.
Location is also a useful clue. Ringworm can appear anywhere on the body and doesn't follow a consistent pattern. Eczema tends to recur in the same areas because the skin's barrier dysfunction is structural, not circumstantial.
When in doubt, see a dermatologist. Misdiagnosis is common, and using an antifungal cream for eczema or a steroid for ringworm can significantly complicate both conditions. In particular, steroids can suppress the visible signs of a fungal infection while allowing it to spread beneath the surface.
How to Clean and Manage Each Condition
For ringworm:
Ringworm requires antifungal treatment, typically a topical antifungal applied consistently for several weeks, even after the visible rash resolves. Stopping treatment too early is one of the most common reasons ringworm recurs. Keeping the area clean and dry is important, as fungi thrive in warm, moist environments. Avoid sharing towels, clothing, or training gear with anyone until the infection is fully cleared, and wash all equipment thoroughly after every use.
For eczema:
Eczema management focuses on strengthening the skin barrier and minimizing triggers. Dilute sodium hypochlorite (NaOCl) washes are a recognized approach in dermatology for managing atopic dermatitis; they help reduce colonization by Staphylococcus aureus, which is elevated in eczema-prone skin and is believed to drive a significant portion of flare activity. CLn SportWash is formulated along these principles. Fragrance-free, pH-balanced cleansers are essential for eczema-prone skin. Harsh soaps and heavily scented products are among the most common eczema triggers and should be avoided during flares and, ideally, year-round.
Showering in lukewarm rather than hot water, patting skin dry rather than rubbing, and applying a fragrance-free moisturizer immediately after cleansing are all habits that support barrier recovery between training sessions.
Stop Guessing and Start Cleansing Right with CLn SportWash
Whether you're dealing with ringworm, eczema, or just skin that doesn't do well after training, the cleanser you use matters more than most athletes realize. CLn SportWash is formulated with sodium hypochlorite (NaOCl) for athletes with skin prone to irritation and conditions that standard soap wasn't built to handle. If your skin keeps acting up after practice, it may be time to rethink what's in your shower.