Athlete's Foot: Symptoms, Causes, Prevention & Treatment — Complete Guide
Updated: 2 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
Quick Answer: What Is Athlete's Foot?
Athlete's foot, also called tinea pedis, is a fungal skin infection that usually starts between the toes when feet get hot and sweaty in closed shoes. It causes an itchy, scaly rash that may peel, burn or blister and spreads easily on floors, towels, shoes and bedding. Most cases clear with over-the-counter antifungals, but it often returns, so prevention matters. [1]
What the research says
Oral terbinafine and itraconazole work when topical treatment fails. A Cochrane review of 15 trials (1,438 participants) found terbinafine more effective than griseofulvin (risk ratio 2.26, 95% CI 1.49–3.44; 2 trials, 71 participants) and found both terbinafine and itraconazole more effective than placebo; the review also notes that about 15% of the world population has fungal infections of the feet. (Bell-Syer et al., Cochrane Database Syst Rev, 2012) [3]
Antifungal creams clearly beat dummy creams. In vehicle-controlled trials, allylamines (such as terbinafine), azoles, ciclopirox olamine, tolnaftate, butenafine, and undecanoates were all more effective than vehicle, and allylamines have shown superior effects since 1991 even for short-term outcomes. (Crawford et al., Br J Dermatol, 2008) [4]
No single class of topical antifungal consistently wins. Across 104 randomized trials of 16 topical antifungals for fungal skin infections, all were better than placebo, with no significant differences among classes and no differences in safety or tolerability in direct comparisons. (Rotta et al., Br J Dermatol, 2012) [5]
At a Glance: Athlete's Foot Summary
What it is: A skin infection caused by fungi (tinea pedis), usually starting between the toes.
Why it happens: Feet get hot and sweaty inside closed shoes; fungi thrive in warm, damp places.
Symptoms: Itchy, scaly, peeling or cracked skin between toes; burning; blisters; dry scaly skin on sole and sides.
How it spreads: Contact with an infected person or surfaces — floors, towels, shoes, bedding.
When to see a doctor: Rash not improved after 2 weeks of OTC treatment; you have diabetes; signs of infection (swelling, pus, fever).
Key treatment: OTC antifungal cream, spray, or powder; prescription topical or oral medicines if needed.
Treatment timeline: Results may take 2 to 4 weeks; keep applying until 1 week after the rash clears.
Complications: Spread to groin (jock itch), bacterial infection, cellulitis in people with weakened immune systems.
Outlook: Usually treats well — but it often comes back, making prevention habits essential.
What Is Athlete's Foot?
Athlete's foot, also called tinea pedis, is a skin infection caused by fungi. It usually starts between the toes. The condition occurs when feet get hot and sweaty inside closed shoes — creating the warm, damp environment where fungi thrive.
The condition is closely related to other fungal infections such as ringworm and jock itch. It can be treated with antifungal medicines, but it often comes back — which is why understanding both the treatment and the prevention habits matters.
What are the symptoms of athlete's foot?
Athlete's foot causes an itchy, scaly rash that can affect one or both feet, often with peeling or cracked skin between the toes. The most common symptoms are:
Scaly, peeling or cracked skin between the toes
Itchy skin, especially right after taking off socks and shoes
Swollen skin that may look red, purple, or gray, depending on your skin color
Burning or stinging
Blisters
Dry, scaly skin on the bottom and sides of the foot
When to See a Doctor
Most cases start at home with an over-the-counter product, but there are three clear moments to get professional care:
The two-week rule. If you have a rash on your foot that doesn't improve after two weeks of using an over-the-counter antifungal cream, see your healthcare professional.
If you have diabetes. See your healthcare professional if you think you have athlete's foot — don't self-treat first.
Signs of a deeper infection. See your healthcare professional right away if you develop swelling of the affected area, pus, or fever.
What causes athlete's foot, and how does it spread?
Athlete's foot is caused by the same type of fungi, called dermatophytes, that cause jock itch and ringworm. These fungi thrive in warm, damp places such as sweaty socks and shoes and wet towels.
The fungi that cause athlete's foot spread easily to other people because they can travel on hands, towels, and other surfaces. You can get athlete's foot in two ways:
Through contact with someone who has it
By touching surfaces that have the fungus on them
The fungi can also spread from your feet to other parts of your body. This may happen if you use a towel to dry your feet and then use the same towel to dry the rest of your body.
Athlete's Foot Risk Factors: Who Gets It Most?
Athlete's foot is more likely if you often wear enclosed shoes, sweat a lot, share personal items or walk barefoot in public showers and pools.
Often wear enclosed footwear
Sweat a lot
Share towels, shoes, rugs, or bed linens with someone who has athlete's foot
Walk barefoot in public showers, pools, or locker rooms
What are the complications of athlete's foot?
A complication of athlete's foot is the spread of fungi to other parts of the body. For example, if the fungi spread to the groin, they can cause jock itch.
Athlete's foot can sometimes lead to a bacterial infection. People with weakened immune systems — such as those with diabetes — may develop a serious skin infection called cellulitis. This is one reason the "see a doctor" rules above exist.
How Is Athlete's Foot Diagnosed?
Your healthcare professional may be able to diagnose athlete's foot simply by looking at it. However, some types of athlete's foot look like dry skin or dermatitis. To confirm athlete's foot and rule out other conditions, your doctor may take a small skin sample of the affected area for testing in a lab [2].
How is athlete's foot treated, from over-the-counter to prescription options?
Your healthcare professional will likely suggest self-care along with an antifungal cream, spray, or powder that you can buy without a prescription [2].
First line (OTC): Terbinafine (Lamisil AT) — shown to be highly effective.
Other OTC options: Miconazole (Zeasorb AF, Lotrimin AF), clotrimazole (Lotrimin AF), tolnaftate (Tinactin) — cream, spray, or powder forms.
Prescription topical: Econazole or ciclopirox — stronger medicine applied to the skin if OTC products don't work.
Prescription oral: Terbinafine or itraconazole — for more serious infections; sometimes both skin-applied and oral medicines are needed.
Two timing rules matter as much as the medicine itself:
Apply twice a day, and keep using the product until a week after the rash clears up.
Results might take 2 to 4 weeks. If the infection comes back, you may need to start treatment again.
You may need to try various products to find the one that works best for you.
Which lifestyle habits and home remedies help clear athlete's foot?
Keeping feet clean and dry, using an antifungal product and changing socks regularly are habits that ease athlete's foot and help stop it from coming back.
Keep your feet clean and dry. Wash your feet twice a day and gently towel-dry between the toes.
Use an antifungal product. After washing and drying, apply an antifungal cream, powder, or spray. Apply twice a day until a week after the rash clears.
Change socks regularly. Change them at least once a day — or more often if your feet get very sweaty.
Wear lightweight, breathable footwear. Avoid shoes made of artificial materials such as vinyl or rubber. Try shoes made with natural materials such as leather, cotton, or linen. When possible, wear sandals or open-toe shoes to help your feet dry out.
Rotate pairs of shoes. Use different shoes from day to day so each pair has time to dry after use.
Protect your feet in public places. Wear waterproof sandals or shoes around public pools, showers, and locker rooms.
Try not to scratch the rash. You can soothe itchy feet by soaking them in cool water.
Don't share shoes. Sharing shoes raises the risk of getting a fungal infection.
How can athlete's foot be prevented?
Athlete's foot can be prevented by keeping feet clean and dry, protecting them in public places and not sharing shoes, towels or bedding.
Let your feet breathe. Wear sandals or open-toe shoes when possible.
Wash your feet every day with warm, soapy water and dry them well, especially between the toes.
Use an antifungal powder, spray, or ointment after washing your feet.
Change your socks regularly — choose socks made from moisture-absorbing fabrics such as cotton rather than artificial fabrics such as nylon.
Rotate pairs of shoes so they dry between uses.
Protect your feet in public places with waterproof sandals or shoes.
Don't share shoes, towels, or unwashed bedding with others — the fungi can live on these items.
How should you prepare for an athlete's foot appointment?
Your healthcare professional — or a skin specialist, called a dermatologist — can diagnose athlete's foot. You don't need to do anything special before the appointment.
What You Can Do
Before your appointment, write down a list of questions to ask, such as:
What's the most likely cause of my symptoms?
Are tests needed to confirm the diagnosis?
What treatments are available?
Is this condition temporary or long lasting?
Is there a generic alternative to the medicine you're prescribing?
Can I wait to see if the condition goes away on its own?
What can I do to prevent the fungus from spreading?
What skin care routines do you recommend while the condition heals?
What to Expect From Your Doctor
Your healthcare professional is likely to ask several questions, such as:
When did you first notice your symptoms?
What did the rash look like when it first started?
Is the rash painful or itchy?
Does anything seem to make it better?
What, if anything, makes it worse?
Does a family member also have athlete's foot?
Have you spent time at swimming pools, locker rooms, saunas, or other places where athlete's foot might be spread?
Frequently Asked Questions About Athlete's Foot
What is athlete's foot?
Athlete's foot, also called tinea pedis, is a skin infection caused by fungi that usually starts between the toes. It happens when feet get hot and sweaty inside closed shoes, creating the warm, damp environment the fungus loves.
What does athlete's foot look and feel like?
Common signs include scaly, peeling, or cracked skin between the toes, itching (especially after removing socks and shoes), burning or stinging, blisters, and swollen skin that may look red, purple, or gray depending on your skin color. Dry, scaly skin can also appear on the bottom and sides of the foot.
Is athlete's foot contagious?
Yes. The dermatophyte fungi spread easily to other people through hands, towels, floors, and shoes. You can catch it through contact with someone who has it or by touching contaminated surfaces — and it can spread from your feet to other body parts, such as the groin.
How long does athlete's foot take to clear?
With an effective antifungal product, results might take 2 to 4 weeks. The most important rule is to keep applying the treatment until a week after the rash clears — stopping early is a common reason the infection returns.
What is the best treatment for athlete's foot?
Most cases respond to over-the-counter antifungal creams, sprays, or powders — terbinafine has been shown to be highly effective, alongside options like miconazole, clotrimazole, and tolnaftate. If these don't work, doctors may prescribe stronger topical medicines (econazole or ciclopirox) or oral antifungals (terbinafine or itraconazole) for serious infections.
When should I see a doctor for athlete's foot?
See a doctor if the rash doesn't improve after two weeks of over-the-counter treatment, if you have diabetes, or if you notice signs of a deeper infection such as swelling, pus, or fever. Left unchecked, athlete's foot can lead to bacterial infections like cellulitis in people with weakened immune systems.
How do I keep athlete's foot from coming back?
Keep feet clean and dry, change socks daily (cotton absorbs moisture better than nylon), rotate shoes so they dry between uses, wear breathable footwear, avoid walking barefoot in public showers, pools, and locker rooms, and never share shoes, towels, or unwashed bedding.
Conclusion
Athlete's foot is one of the most common — and most recurring — fungal infections, and this guide gives you the full picture to clear it and keep it away. The three lessons to keep:
Know the two-week rule. If an over-the-counter antifungal isn't working after two weeks, see a healthcare professional — and see one right away if you have diabetes or signs of a bacterial infection.
Timing beats the product. Whatever medicine you use, apply it twice daily and continue for a week after the rash clears — stopping early is why the fungus so often comes back.
Prevention is the real cure. Dry feet, breathable shoes, daily sock changes, and no sharing of towels or footwear cut off the fungus's two favorite things: moisture and access.
This guide covers everything you need to recognize the infection, treat it properly, and build habits that keep it from returning.
This article is for general informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional for diagnosis and treatment.
References
Mayo Clinic Staff. Athlete's foot - Symptoms and causes. Mayo Clinic. January 6, 2026. https://www.mayoclinic.org/diseases-conditions/athletes-foot/symptoms-causes/syc-20353841
Mayo Clinic Staff. Athlete's foot - Diagnosis and treatment. Mayo Clinic. January 6, 2026. https://www.mayoclinic.org/diseases-conditions/athletes-foot/diagnosis-treatment/drc-20353847
Bell-Syer SEM, Khan SM, Torgerson DJ. Oral treatments for fungal infections of the skin of the foot. Cochrane Database Syst Rev. 2012;10(10):CD003584. PMID: 23076898. DOI: 10.1002/14651858.CD003584.pub2.
Crawford F, Harris R, Williams HC. Are placebo-controlled trials of creams for athlete's foot still justified? Br J Dermatol. 2008;159(4):773-779. PMID: 18834482. DOI: 10.1111/j.1365-2133.2008.08806.x.
Rotta I, Sanchez A, Gonçalves PR, et al. Efficacy and safety of topical antifungals in the treatment of dermatomycosis: a systematic review. Br J Dermatol. 2012;166(5):927-933. PMID: 22233283. DOI: 10.1111/j.1365-2133.2012.10815.x.
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