Corns and calluses are thickened areas of skin caused by repeated friction or pressure. They are common on feet and hands. Warning: Patients with diabetes should not attempt to soften or treat corns and calluses themselves because of the risk of diabetic ulcers; instead, please see a podiatrist.
First-line recommendations:
Pumice Stone/Foot File: Used after warm water soak to remove softened skin. Gently file the corn/callus daily with a natural pumice stone until resolved.
Salicylic acid: Softens and helps exfoliate thickened skin. Dr. Scholl's 17% salicylic acid liquid or 40% salicylic acid patches applied directly to the corn or callus once daily until resolved, after first cleaning the area with warm water and the pumice stone.
Second-line recommendations:
Urea Cream: Softens and hydrates thickened skin. Dose: 40% topical cream can be applied 1-2 times daily as needed.
Protective Pads: Adhesive cushions the affected area to prevent further friction. Use as needed.
Professional intervention:
Scalpel debridement or surgical excision may be indicated for larger or painful lesions
Customized orthotic devices may be prescribed to redistribute pressure on the affected surface.
Citations:
Burrow JG, Rome K, Padhiar N. Neale's disorders of the foot and ankle, 9th edition. Elsevier; 2020
Reilly IN, Longhurst B, Vlahovic TC. Surgical Excision of Intractable Plantar Keratoses (Corns) of the Foot: A Scoping Review. J Am Podiatr Med Assoc. 2023; 113(6). doi: 10.7547/22-04