How do you know when plantar warts are healed after liquid nitrogen cryotherapy?

Nov 29, 2025 Source: Cainiu Health

Dr. Liu Wenmin

Introduction

After cryotherapy with liquid nitrogen for plantar warts, recovery can be determined by complete detachment of the wart, wound healing, absence of pain or itching, no new warts appearing, and restoration of normal skin function. Healing should follow natural processes, avoiding人为 interventions. If severe redness, swelling, ulceration, increased pain, or signs of infection occur after cryotherapy, prompt medical attention is recommended.

After cryotherapy with liquid nitrogen for plantar warts, recovery can be determined when the following conditions are met: complete shedding of the wart, wound healing, absence of pain or itching, no new warts appearing, and restoration of normal skin function. The healing process should follow natural progression without artificial interference. If severe swelling, ulceration, increased pain, or signs of infection occur after cryotherapy, prompt medical attention is recommended.

1. Wart shedding: The blister or scab formed after freezing falls off naturally. There should be no residual wart tissue at the site, and the underlying skin surface appears smooth, without nodules or protrusions—this is the key indicator of cure.

2. Wound healing: The wound left after wart shedding is fully closed, with no exudate, bleeding, or erosion. Skin color gradually returns to normal, blending naturally with surrounding healthy skin, and there is no obvious scar formation or hypertrophic scarring.

3. Absence of pain or itching: There is no tenderness or sharp pain in the foot during walking, and no itching or burning sensation in daily activities. Nerve endings have recovered, and local skin sensation has returned to normal.

4. No new warts: No new warts appear in the treated area or surrounding skin. Satellite lesions around the original wart have completely resolved, with no signs of recurrence due to residual viral activity.

5. Restoration of skin function: The elasticity and wear resistance of the sole skin return to normal. There is no foreign-body sensation while walking, and the skin barrier is intact, effectively protecting against external friction and irritation.

Post-procedure care includes keeping the wound clean and dry, avoiding contact with water and strenuous physical activity. Wear loose, breathable footwear and socks to minimize friction. Do not manually puncture blisters or peel off scabs—allow them to fall off naturally. Maintain good foot hygiene, avoid sharing shoes or socks with others, and reduce the risk of recurrence.

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What does it mean if there's a hollow small hole inside a callus on the sole of the foot, and what should be done about it?

In general, hollow small holes within calluses on the soles of the feet may be caused by prolonged friction and pressure, dry skin with accumulated keratin, plantar warts, porokeratosis plantaris (pitted keratolysis), athlete's foot, or other reasons. Depending on the specific situation, improvements can be achieved through daily care, medication, surgical treatment, or other methods. It is important to wear properly fitting shoes and socks in daily life, avoid prolonged walking or standing, keep the feet dry, and thoroughly dry the feet after soaking.

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What causes a transparent, solid, hard spot on the sole of the foot that is neither painful nor itchy, and what should be done about it?

In general, a transparent, solid, hard spot on the sole that is painless and non-itchy may result from prolonged pressure, friction, plantar warts, punctate palmoplantar keratoderma, or the drying phase of dyshidrotic eczema. Depending on the specific situation, treatments such as conservative management, medication, or surgical intervention may be chosen to improve the condition. It's important in daily life to monitor the condition of the skin on the soles and to wear appropriate footwear and socks to minimize external irritation.