Athlete's Foot and Fungal Skin Infections: What to Know

Athlete’s foot and other fungal skin infections are extremely common. Yet many people feel frustrated or embarrassed when symptoms return again and again despite treatment. You may have found yourself wondering why athlete’s foot keeps coming back or looking for reliable guidance on how to prevent toenail fungus.

Understanding why fungal infections recur can help you break the cycle and protect your skin long-term.

Fungal organisms thrive in warm, moist environments. Feet, especially when enclosed in shoes for long periods, provide ideal conditions for fungal growth.

Common reasons infections return include:

1. The fungus wasn’t fully eliminated

Symptoms such as itching or redness may improve before the fungus is completely gone. Stopping treatment too early allows remaining organisms to multiply again.

2. Reinfection from shoes, socks, or shared surfaces

Fungal spores can survive in:

• Shoes and athletic footwear

• Socks and towels

• Locker room floors and communal showers

Even after successful treatment, exposure to contaminated items can lead to reinfection.

3. Skin barrier damage

Cracked, dry, or macerated skin allows fungi to penetrate more easily. This is common between toes, where moisture tends to collect.

4. Underlying toenail fungus

Toenail fungus often acts as a reservoir. Without addressing it, athlete’s foot keeps coming back, even when skin symptoms are treated repeatedly.

Athlete’s foot (tinea pedis)

Typically causes itching, burning, scaling, and peeling skin, often between the toes or on the soles.

Toenail fungus (onychomycosis)

Leads to thickened, brittle, discolored nails. Toenail fungus is slower to treat and more likely to recur.

Fungal infections elsewhere on the body

Fungi can spread to other areas such as the groin or hands, especially with repeated scratching or shared towels.

Protect your feet in shared spaces

• Wear sandals or shower shoes in locker rooms and pools

• Avoid sharing towels, socks, or shoes

Treat nails and skin together

If you have both athlete’s foot and toenail fungus, treating only the skin may not be enough. Addressing nail infection reduces the chance that fungus will spread back to surrounding skin.

Maintain healthy skin

• Moisturize dry skin to prevent cracking

• Trim toenails straight across and keep them clean

See a healthcare professional if:

• Symptoms persist despite over-the-counter treatment

• Nails become painful, thickened, or distorted

• You have diabetes or circulation problems

• Signs of bacterial infection appear, such as redness, swelling, or drainage

Prescription treatments may be needed for persistent or widespread infections.

Although fungal foot infections are widely discussed online and often considered embarrassing, they’re among the most common skin conditions worldwide. With consistent treatment, proper foot care, and preventive habits, most people can reduce recurrence and protect long-term foot health.

If athlete’s foot keeps coming back, it’s usually not a failure. It’s a sign that prevention and treatment need to work together.

*This article is intended for informational purposes only and should not be substituted for medical advice. For medical questions and advice, it is always best to consult with your trained physician.

Sources:

11 tips to prevent nail fungus. American Academy of Dermatology. (n.d.-a). https://www.aad.org/public/diseases/a-z/prevent-another-nail-infection 

Centers for Disease Control and Prevention. (n.d.). What causes ringworm and fungal nail infections. Centers for Disease Control and Prevention. https://www.cdc.gov/ringworm/causes/index.html 

How to prevent athlete’s foot. American Academy of Dermatology. (n.d.-b). https://www.aad.org/public/diseases/a-z/athletes-foot-prevent 

Mayo Foundation for Medical Education and Research. (2024a, May 15). Nail fungus. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/nail-fungus/symptoms-causes/syc-20353294