Pitted keratolysishttps://en.wikipedia.org/wiki/Pitted_keratolysis
Pitted keratolysis is a bacterial skin infection of the foot that produces a strong odor. It is characterized by crater‑like pits on the soles and toes, especially in weight‑bearing areas. The infection is caused by Corynebacterium species bacteria. Excessive foot sweating and the use of occlusive footwear create an environment in which these bacteria thrive.

The condition is fairly common, particularly in the military, where wet shoes or boots are worn for extended periods without being removed or cleaned. Diagnosis is usually made by visual examination and recognition of the characteristic odor. Treatment requires the topical application of antibiotics such as benzoyl peroxide, clindamycin, erythromycin, fusidic acid, or mupirocin. Prevention focuses on keeping the feet dry.

○ Treatment ― OTC Drugs
Always keep your feet and socks dry. Try an over‑the‑counter antibiotic ointment. Applying hand sanitizer to your feet can also help.
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  • A sole of a foot with multiple malodorous pits
  • It is accompanied by a severe odor caused by Corynebacterium species.
References Pitted keratolysis - Case reports 35855037 
NIH
Pitted Keratolysis is a descriptive title for a superficial bacterial skin infection that affects the soles of the foot, less frequently, the palms confined to the stratum corneum. The etiology is often attributes due to Kytococcus sedentarius and Corynebacterium species bacteria. Pitted keratolysis is most common in the age group of 21 to 30 years, with a majority of affected patients in their 1st to 4th decade of life. Males are at 4 times higher risk of being susceptible to this condition, presumably, due to frequent use of occlusive footwear, whereas females maintain better foot hygiene. We present a case of a 23-year-old medical intern who presented to our hospital with complaints of pitted skin lesion over base of foot, predominantly over toes for past 3 days.
 Pitted keratolysis - Case reports 26982791 
NIH
Pitted keratolysis is a skin disorder that affects the stratum corneum of the plantar surface and is caused by Gram-positive bacteria. A 30-year-old male presented with small punched-out lesions on the plantar surface. A superficial shaving was carried out for scanning electron microscopy. Hypokeratosis was noted on the plantar skin and in the acrosyringium, where the normal elimination of corneocytes was not seen. At higher magnification (x 3,500) bacteria were easily found on the surface and the described transversal bacterial septation was observed.