Understanding athlete's foot
Athlete's foot treatment starts with knowing the cause. Athlete's foot is a fungal skin infection of the feet. The fungus likes warm, damp places, so it often starts between the toes. It can cause itching, burning, and red, peeling, or cracked skin. In some people it spreads to the soles or sides of the feet, where the skin may turn dry and scaly.
You can pick up the fungus from damp floors in locker rooms, pools, and showers. Sweaty socks and shoes that stay wet can help it grow. Many people have mild symptoms and brush them off. But the skin may crack, and the fungus can spread to other areas or to the toenails. That is why lasting itching should be taken seriously.
At Run Doctor, Dr. Lawrence Maurer and Dr. Kate Cryderman see athlete's foot in runners, swimmers, gym-goers, and busy families from Kirkland, Redmond, Woodinville, and Seattle. We confirm what the rash is, since other skin problems can look the same. Persistent cases or nail changes should be evaluated, and we help you choose a plan that fits your health. You will get clear advice.
Signs and symptoms
- Itching or burning between the toes
- Peeling, flaky, or cracked skin
- Red or scaly skin on the soles or sides of the feet
- Small blisters that may ooze or crust
- A bad smell from damp, soft skin
- Thick, yellow, or crumbly toenails that may mean the fungus has spread
- A rash that keeps coming back after treatment
Common causes
Damp, warm feet
Fungus grows well in moist skin. Sweaty feet, wet socks, and shoes that do not dry out can make it easier for an infection to start.
Shared wet spaces
Locker rooms, pool decks, and shared showers can carry fungus. Walking barefoot in these places may expose your feet to it.
Tight or non-breathing shoes
Shoes that trap heat and sweat help fungus thrive. Closed shoes worn for long hours, such as boots or sports shoes, can add to the problem.
Small breaks in the skin
Cracks, blisters, or small cuts can let fungus in more easily. Dry, cracked heels and skin between the toes are common spots.
Health factors
Diabetes, a weak immune system, or poor circulation can make foot infections more likely or harder to clear. These conditions need prompt, careful care.
How we diagnose it
We ask how long the rash has been there, where it itches, what you have tried, and whether you have diabetes or other health issues. Then we look at the skin between and under your toes, your soles, and your toenails. Other conditions, such as eczema, dry skin, or allergic rash, can look like athlete's foot. When needed, we may take a small skin or nail sample to check for fungus. This helps us choose the right treatment.
Biomechanical exam and gait analysis are part of how we work.
Treatment options
We start with conservative care. Surgery is only discussed when it is the best option for you.
- 1
Keeping feet clean and dry
Wash your feet daily and dry well between the toes. Change damp socks often. A dry environment makes it harder for the fungus to grow.
- 2
Antifungal products
Antifungal creams, sprays, or powders may help clear many mild cases when used as directed. Please follow the label, and ask us if you are unsure.
- 3
Prescription treatment
If the rash is stubborn, widespread, or comes back, a prescription antifungal may be needed. We pick the right option for you and talk about safety.
- 4
Caring for shoes and socks
Fungus can stay in shoes. Letting shoes dry fully, rotating pairs, and washing socks in hot water may lower the chance of a repeat. Fresh socks each day also help.
- 5
Treating cracks and infection
Cracked skin can let bacteria in. We check for infection and talk about how to care for open skin so it can heal properly. Early care matters.
- 6
Checking the nails
If the toenails look thick or yellow, the fungus may have spread there. Nail fungus is slower to clear, so we review the options with you.
When to see a podiatrist
- Itching or peeling that lasts more than a couple of weeks of home care
- A rash that keeps coming back
- Thick, yellow, or crumbly toenails
- Swelling, warmth, pus, red streaks, or increasing pain, which may mean infection
- Diabetes or poor circulation with any foot rash or crack in the skin
Prevention tips
- Dry your feet fully, especially between the toes, after bathing or swimming.
- Wear sandals or shower shoes in locker rooms and pool areas.
- Choose breathable socks and change them when they get damp.
- Let your shoes dry out between wears, and rotate pairs.
- Do not share towels, shoes, or nail tools.
Frequently asked questions
What is the best athlete's foot treatment?
For mild athlete's foot, an over-the-counter antifungal cream or spray used as directed, along with keeping feet dry, often helps. Stubborn or widespread cases may need prescription care. Because other rashes look similar, a podiatrist can confirm the cause. Please see us if there is no change after a couple of weeks.
Is athlete's foot contagious?
Yes, athlete's foot can spread to other people and to other parts of your body. The fungus can live on damp floors, towels, and shoes. You can lower the risk by wearing shower shoes, keeping feet dry, and not sharing towels or footwear. Treating it early also helps limit spread.
How do I know if it is athlete's foot or something else?
You cannot always tell by looking, since eczema, dry skin, and allergic rashes can look the same. Athlete's foot often itches and peels between the toes. If a rash does not improve or keeps coming back, a podiatrist can check it and test for fungus if needed.
Should I see a podiatrist in Kirkland for athlete's foot?
See a podiatrist in Kirkland if home care does not help, the rash returns, your nails look thick or yellow, or you have diabetes or poor circulation. Signs like swelling, pus, or red streaks need prompt care. We can confirm the cause and choose a safe plan. Call 425-899-3234.
Can athlete's foot spread to my toenails?
Yes, the same fungus can spread to the toenails. Nails may turn thick, yellow, or crumbly. Nail fungus is harder to treat than skin fungus and often needs longer care. If you notice nail changes with athlete's foot, have them evaluated so the right treatment can start sooner.
Related care
This page is general information. It is not medical advice and it does not replace an exam. If you have severe pain, an open wound, fever, or sudden numbness, get urgent care. Last updated.