Pitted keratolysis — those tiny pits on the bottom of the feet plus a strong odor — is caused by bacteria, not fungus, and it clears with the right combination of topical antibiotics and antiperspirants.
You’ve come to the right podiatry team. Dr. Tom Biernacki, DPM, FACFAS — board-certified foot & ankle surgeon with 3,000+ surgeries — explains exactly what how to get rid of pitted keratolysis means and what works. Call (810) 206-1402 for same-day appointment at Howell or Bloomfield Township.
Quick answer: How to get rid of pitted keratolysis once for all the right way: 1) prepare the area properly, 2) use the correct technique demonstrated by a podiatrist, 3) avoid the common mistakes that worsen the problem. We see complications in clinic from improper home care. The full step-by-step guide below shows the right method. Call (810) 206-1402.
Medically reviewed by Dr. Tom Biernacki, DPM · Board-Certified Podiatric Surgeon · Last reviewed: April 2026 · Editorial Policy
Last Updated: March 2026 | Reading Time: 7 min
This article is for informational purposes only and does not replace professional medical advice. Schedule an appointment for personalized care.
Quick Answer
Pitted keratolysis is a bacterial skin infection causing small crater-like pits on the soles of the feet, usually accompanied by a strong odor. It is caused by Kytococcus sedentarius or Corynebacterium bacteria thriving in moist, warm conditions. Treatment involves topical antibiotics (erythromycin 2% or clindamycin gel) applied twice daily for 2–4 weeks, combined with moisture-control strategies like antiperspirant foot sprays and breathable footwear.
Medically Reviewed by Dr. Tomasz Biernacki, DPM · Board-Qualified Podiatrist · Balance Foot & Ankle Specialists, Howell & Bloomfield Township, MI · Last updated March 2026
How to Get Rid of Pitted Keratolysis Once & For All
Pitted keratolysis is one of those conditions that people often suffer with for months or years — partly because it looks like athlete’s foot or a wart, and partly because it’s treated with the wrong things. If you’ve noticed shallow pits or craters on the soles of your feet along with a distinctive unpleasant smell, here’s exactly what pitted keratolysis is and how to eliminate it for good.
What Is Pitted Keratolysis?
Pitted keratolysis is a bacterial skin infection caused by Corynebacterium species (sometimes also Kytococcus sedentarius or Dermatophilus congolensis). The bacteria produce enzymes that digest the top layer of skin, creating characteristic small craters or pits. Unlike athlete’s foot — which is fungal — pitted keratolysis is bacterial and requires a completely different treatment approach.
It’s one of the most underdiagnosed foot conditions — many patients (and even some healthcare providers) mistake it for a fungal infection or excessive callus buildup.
Recognizing Pitted Keratolysis: The Key Signs
- Small pits or craters in the skin of the sole — typically 1–7mm in diameter, often clustered
- White or yellowish discoloration of the affected areas
- Strong, characteristic odor — described as sour, cheesy, or sulfurous. This is the most distinguishing symptom.
- Worse when feet are wet — the pits become more visible after bathing or sweating
- Most common on weight-bearing areas — ball of foot, heel, toe tips
- Usually painless, but may cause mild tenderness or itching
What Causes It?
The bacteria that cause pitted keratolysis thrive in warm, moist, enclosed environments. Contributing factors include:
- Excessive foot sweating (hyperhidrosis) — the primary driver
- Wearing closed shoes or boots for extended periods
- Synthetic socks that trap moisture
- Working in hot, humid environments
- Prolonged standing or physical labor
- Poor ventilation of footwear
Athletes, military personnel, healthcare workers, and manual laborers are at highest risk.
How to Treat Pitted Keratolysis
Step 1: Address the Moisture Problem (Critical)
Without controlling sweat and moisture, antibiotic treatment will keep failing. This is the most important step:
- Switch to moisture-wicking or wool socks — never 100% cotton, which holds moisture
- Use antiperspirant on your soles — yes, the same type you use under your arms. Apply prescription-strength aluminum chloride (Drysol) or 20% aluminum chloride to the soles at bedtime for 2–4 weeks
- Alternate shoes daily — give each pair 24 hours to dry out completely
- Use breathable footwear — leather or mesh rather than synthetic materials
- Use foot powder (zinc oxide or talc-based) to absorb excess moisture throughout the day
Step 2: Topical Antibiotic Treatment
Prescription topical antibiotics are the mainstay treatment. Your podiatrist or doctor can prescribe:
- Erythromycin 2% gel or solution — apply twice daily to affected areas for 3–4 weeks
- Clindamycin 1% gel or lotion — equally effective, also applied twice daily
- Mupirocin (Bactroban) — another effective option
- Benzoyl peroxide (5–10%) wash — available OTC as a face wash but effective for pitted keratolysis when used as a foot soak or applied directly
Step 3: Daily Hygiene Protocol
- Wash feet with antibacterial soap or benzoyl peroxide wash daily
- Dry thoroughly between all toes — pat, don’t rub
- Change socks daily (or more frequently if sweating heavily)
- Disinfect footwear with antibacterial spray or UV shoe sanitizer
Why “Once & For All” Requires Maintenance
Pitted keratolysis responds well to treatment — most patients see significant improvement within 2–3 weeks of starting topical antibiotics plus moisture control. However, the bacterial environment is re-established quickly if you return to the same sweaty footwear habits that caused it.
Long-term prevention requires:
- Continued use of moisture-wicking socks
- Regular antiperspirant application during high-sweat periods
- Rotating and properly airing out footwear
- Annual check-in with your podiatrist if prone to recurrence
⚠️ When to See a Podiatrist for Pitted Keratolysis
Many people treat this themselves with antifungal cream for months — and wonder why it isn’t working. See a podiatrist if:
- You’ve been treating what you think is athlete’s foot for more than 6 weeks without improvement
- There is a strong or unusual odor from your feet
- You notice pits or craters in the skin (not just scaling)
- The condition keeps recurring despite treatment
- You have diabetes — any foot skin infection needs prompt professional attention
Podiatrist-Recommended Products for Pitted Keratolysis
Struggling with Smelly Pitted Foot Skin? Get the Right Diagnosis.
Pitted keratolysis is often misdiagnosed and mistreated for months. Our podiatrists at Balance Foot & Ankle Specialist provide an accurate diagnosis and prescribe the most effective treatment to clear this condition quickly.
Or call us at (810) 206-1402
Related Articles
- How to Cure Athlete’s Foot Fungus Fast
- 15 Most Common Skin Conditions on the Feet
- Why Are the Bottoms of My Feet Yellow?
- Toenail Fungus: The Real Cause and Cure
Written by Dr. Tom Biernacki, DPM — Board-certified podiatrist at Balance Foot & Ankle Specialist, serving Howell and Bloomfield Township, Michigan.
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Dealing with Smelly, Pitted Feet?
Pitted keratolysis is a common bacterial foot infection that causes embarrassing odor and distinctive pitted skin. Our podiatrists provide effective treatment that clears it quickly.
Frequently Asked Questions
How long does this take?
Most home protocols take 5-15 minutes per session. Improvement visible in 2-4 weeks with consistent application.
When should I stop and see a doctor?
Stop and see a podiatrist if you see redness spreading, pus, increased pain, or fever. These signal infection requiring professional care.
Can I do this if I have diabetes?
Diabetic patients should consult a podiatrist before home foot care. Reduced sensation can hide complications.
In-Office Treatment at Balance Foot & Ankle
If home treatment isn’t providing relief for your foot and ankle conditions, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.
Same-day appointments available. (810) 206-1402
Get Expert Care at Balance Foot & Ankle
Same-week appointments at our Howell and Bloomfield Township offices. Board-certified podiatric surgeons. Most insurance accepted.
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Dr. Tom Biernacki, DPM is a board-certified foot & ankle surgeon (ABFAS & ABPM) at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has made him one of the most-followed foot & ankle educators on YouTube.
More questions patients ask
What is pitted keratolysis and what causes it?
Pitted keratolysis is a bacterial skin infection causing small, shallow pits (craters) in the skin of the soles and toes, typically with a foul odor — often described as very strong and unpleasant. It's caused by bacteria (Corynebacterium species, Kytococcus sedentarius, Dermatophilus congolensis) that thrive in warm, moist, protein-rich environments. These bacteria produce proteolytic enzymes that digest the outer skin layer (stratum corneum), creating the characteristic pits. It's extremely common in people with sweaty feet and is often mistaken for athlete's foot. Balance Foot & Ankle (810) 206-1402 diagnoses and treats pitted keratolysis in Howell and Bloomfield Township.
How do I know if I have pitted keratolysis versus athlete's foot?
Distinguishing features: pitted keratolysis shows visible pits/craters in the skin (most visible when wet), extremely strong malodor as the primary symptom, and is NOT itchy (athlete's foot is typically very itchy). It appears most commonly on weight-bearing areas of the sole and toe pads. Athlete's foot causes scaling, peeling, and intense itching — especially between toes — without the pit formation. A KOH test (microscopic examination) can differentiate: athlete's foot will show fungal hyphae; pitted keratolysis won't. Both can coexist. Correct diagnosis is important as treatments differ.
What is the best treatment for pitted keratolysis?
Effective treatment targets both the bacteria and the moist environment: topical antibiotics (erythromycin solution, clindamycin solution, or fusidic acid applied twice daily for 4 weeks) are first-line and highly effective. Benzalkonium chloride or aluminum chloride solutions reduce sweating and change the skin's pH. Benzoyl peroxide wash (2.5–5%) applied to the soles daily is very effective and affordable. Reducing moisture is essential: moisture-wicking socks, breathable shoes, changing socks mid-day, and daily antiperspirant on soles all significantly reduce bacterial growth. Most cases resolve within 4 weeks of proper treatment.
Why do my feet smell so bad with pitted keratolysis?
The intense odor of pitted keratolysis comes from sulfur-containing compounds (thiols and sulfides) produced by the causative bacteria as they digest keratin protein in the skin. These compounds — similar to the odor of rotten eggs and decaying matter — are extremely pungent at very low concentrations. The odor is compounded by the moist environment in which bacteria thrive. Treating the bacterial infection eliminates the source of odor. While footwear antimicrobial sprays and odor-absorbing insoles help short-term, they don't address the underlying bacterial cause. Medical treatment is necessary for lasting odor resolution.
How can I prevent pitted keratolysis from returning?
Long-term prevention: keep feet as dry as possible throughout the day (change moisture-wicking socks if they become damp, use foot powder), wear breathable footwear materials, apply aluminum chloride antiperspirant to soles daily if hyperhidrosis is present, treat hyperhidrosis medically if needed (iontophoresis, Botox injections, oral medications), wash feet with antibacterial soap daily and dry thoroughly, and rotate shoes to allow complete drying between wearings. For patients with recurrent pitted keratolysis at Balance Foot & Ankle (4330 E Grand River, Howell; 43494 Woodward Ave #208, Bloomfield Township), we address hyperhidrosis as the underlying driver.
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