Skin tags are common, harmless growths that project from the skin’s surface. They are typically small, soft, and skin-colored or slightly darker. While generally benign, their location can sometimes lead to irritation from clothing or jewelry, prompting individuals to seek removal. One frequent method for their removal is freezing, a procedure known as cryotherapy.
Understanding the Freezing Process and Timeline
Cryotherapy for skin tags involves applying a very cold substance, typically liquid nitrogen, to the skin growth. This extreme cold rapidly freezes the cells within the skin tag, disrupting their cellular structure and blood supply. The application usually lasts 10 to 30 seconds, depending on the skin tag’s size.
Immediately after the freezing procedure, the treated area may turn white, and a stinging or burning sensation might be felt, which usually subsides within minutes. Within 24 hours, redness and swelling are common, and a blister may form. This blister signifies that the skin tag’s tissue has separated from the healthy skin. Over the next few days, the blister will dry out, and the skin tag will begin to shrivel, darken, and form a scab.
The timeline for a frozen skin tag to fall off varies, but most detach within 7 to 14 days after treatment. Larger or more stubborn skin tags might take longer, up to 3 to 4 weeks. Factors influencing this timeline include the skin tag’s size and location, as well as an individual’s natural healing rate. Once the scab detaches, new, pink skin will be visible underneath, which will gradually blend with the surrounding skin tone over the following weeks.
What to Expect After Freezing and When to Seek Medical Advice
After a skin tag has been frozen, general aftercare involves keeping the treated area clean and dry. Gently wash the area daily with mild, fragrance-free soap and water, then pat it dry. Applying petroleum jelly or an antibiotic ointment one to two times daily can help with healing and prevent crusting. Avoid picking at the scab, as this can delay healing and increase the risk of scarring or infection.
During the healing process, mild tenderness or itching at the site is normal. However, certain signs indicate a need for medical attention. These include persistent or increasing pain, excessive redness or swelling that spreads beyond the treated area, pus, or a foul smell, which can all be signs of infection. If a fever of 100.4 °F (38 °C) or higher develops, or if the skin tag has not fallen off after several weeks (typically three weeks), contact a healthcare provider.