Why heels crack

The skin on the heels is naturally thicker than elsewhere, and it has no oil glands. When it becomes dry it loses flexibility, and every step spreads the fatty pad of the heel outwards. Eventually the dry, thickened rim of skin cannot stretch any more and splits. Doctors call these splits heel fissures ; shallow ones are mainly cosmetic, but deep ones can hurt, bleed and become infected.

Common contributors include long hours of standing, open-backed shoes and sandals that let the heel pad spread, walking barefoot on hard floors, obesity, ageing skin, hot showers and harsh soaps, and cold, dry weather. Some medical conditions make cracked heels more likely, including diabetes, an underactive thyroid, eczema, psoriasis and fungal infections of the sole.

Many visitors notice their heels getting worse during a trip to Korea. Seoul's winters are cold and very dry, indoor heating and the traditional ondol heated floors pull moisture from the skin, and long sightseeing days in fashionable shoes add pressure. Summer brings the opposite problem: sandals, sweat and rough pavements.

Is it just dry skin? Signs to watch for

Most cracked heels are simply very dry, thickened skin. But a fine, scaly rash spreading over the sole and sides of the foot can be the moccasin type of athlete's foot , which needs antifungal treatment rather than more cream; our guide to athlete's foot treatment near Jongno explains the difference. Itchy, red patches with clear edges may be eczema or psoriasis.

For people with diabetes or poor circulation, a crack is an open wound that can let bacteria in. Even small fissures deserve prompt attention, and home filing should be avoided or done only on medical advice. Read our diabetic foot care guide for Seoul for more.

A nightly home routine that works

Consistency matters more than any single product. Most people see a real difference in a week and healed shallow cracks within two to four weeks if they follow a simple routine every night.

Korean pharmacies (yakguk, 약국) and drugstores in Myeongdong stock urea creams and heel balms, often in higher strengths than supermarket moisturisers. Look for urea 10% for maintenance and 20–25% for thick, cracked skin. Show the pharmacist your heels or a photo if you are unsure which to buy.

1. Soak feet in lukewarm (not hot) water for about 10 minutes to soften the skin.
2. Pat dry and gently rub the thick rim with a foot file or pumice stone, a few strokes only.
3. Apply a thick layer of urea or lactic acid cream to the heels, avoiding any bleeding cracks.
4. Seal with a balm or petroleum jelly and put on clean cotton socks overnight.
5. Moisturise again in the morning before putting on shoes.
6. Reduce filing to two or three times a week once the skin is softer.

Choosing the right creams and treatments

Different ingredients do different jobs. Humectants such as urea and glycerin draw water into the skin; keratolytics such as higher-strength urea, lactic acid and salicylic acid soften and loosen thick skin; occlusives such as petrolatum seal moisture in. The best heel routines combine all three.

Acid-based products can sting on open cracks; if they do, switch to a plain occlusive balm until the cracks close, then reintroduce the active cream. Stop any product that causes redness or a rash, and ask a doctor if cracks are not improving after three to four weeks.

Professional treatment for deep or stubborn fissures

If heel cracks are deep, bleeding, painful or keep coming back despite good home care, professional treatment helps. A clinician can safely reduce thick callus around the fissures with sterile instruments, which takes pressure off the cracks so they can close. Deep fissures may be protected with special dressings, skin-closing glues or heel cups, and infection is treated with antibiotics if needed.

Doctors also look for underlying causes. A fungal test of the scaly skin, a check for diabetes, thyroid problems or eczema, and a look at your footwear often explain why cracks recur. In Korea, these problems are usually seen at dermatology clinics (pibugwa); people with diabetes should start with their diabetes team or a hospital foot clinic.

Expected timeline

Heels respond surprisingly quickly once the routine is right. Surface dryness improves within days; shallow cracks usually close within two weeks; deeper fissures may take four weeks or longer and sometimes need professional help. Once healed, a lighter daily cream keeps them from coming back.

If you are only in Seoul for a few days, focus on comfort and protection rather than trying to fix everything at once. Avoid aggressive filing before long walking days, cover any tender crack with a thin hydrocolloid plaster from a pharmacy, and keep your routine going after you fly home. Hydrocolloid dressings keep a fissure moist and protected, which helps it close, and they are thin enough to wear inside shoes.

Track progress with a quick photo of your heels each week. It is easy to forget how bad they looked at the start, and photos help a doctor judge whether a stubborn crack is improving or needs a different approach, such as checking for fungus or eczema.

Footwear and daily habits that prevent cracks

Prevention is mostly about reducing the forces that spread the heel pad and keeping the skin supple. Small changes make a big difference, especially on a walking-heavy trip.

If hard skin builds up quickly on the rest of your sole, our guide to professional callus removal near Myeongdong station covers safe reduction and pressure relief, and corn removal without surgery covers smaller pressure spots.

• Choose closed-back, cushioned shoes for long walking days; save backless sandals for short outings.
• Use heel cups or cushioned insoles if you stand for long periods.
• Take lukewarm rather than hot showers and use a gentle, soap-free wash.
• Moisturise heels every day, not only when cracks appear.
• In dry hotel rooms, a small humidifier or a bowl of water near the heater helps skin all over.

Visiting Seoul in winter: caring for skin from heels to face

From late November to February, Seoul is often below freezing and the air is dry. Heels, hands, lips and facial skin all lose moisture faster, and many visitors arrive already dehydrated from a long flight. Pack a heel cream, a rich hand cream and a lip balm, and use them more often than you would at home.

For the face, our doctors near Myeongdong and Jongno often recommend hydration-focused treatments for winter travellers, such as skin boosters for dull, dehydrated skin, alongside a simple barrier-repair routine. Our guide to dull and dehydrated skin explains the options, and an IV drip can help if you are run down after travel.

Frequently asked questions

Related treatments and guides

Keep reading

• Heel Hydration Therapy in Myeongdong
• Winter Skin Rescue in Myeongdong
• Professional Callus Removal Near Myeongdong Station
• Dry Hotel Air Skin Recovery
• Sandal-Ready Feet Before Summer Vacation

Sources

1. American Academy of Dermatology – How to care for dry, cracked heels
2. Cleveland Clinic – Don't let dry heels ruin sandal season
3. American Academy of Dermatology – Skin care for people with diabetes