Most warts can be removed at home with over-the-counter salicylic acid, which clears about 66% of warts compared to 50% that eventually disappear on their own. For stubborn warts, a dermatologist can freeze, burn, or chemically blister them off. The right approach depends on where the wart is, how long you’ve had it, and how many treatments you’re willing to sit through.
Why Warts Show Up (and Come Back)
Warts are caused by human papillomavirus, or HPV, which infects the top layer of skin through tiny cuts or breaks. The most common strains that cause skin warts are HPV types 1, 2, 3, 4, and 10. Different strains tend to show up in different places: HPV 1 causes those deep, painful warts on the soles of your feet, while HPV 3 and 10 are responsible for the small, smooth flat warts that cluster on the face or hands.
Your immune system will eventually recognize and clear the virus in many cases, which is why about half of warts resolve without any treatment. But “eventually” can mean months or years, and there’s no way to predict which warts will disappear on their own. Children tend to clear warts faster than adults, whose immune systems may be slower to mount a response against HPV in the skin.
Even after successful treatment, warts recur roughly 30 to 35% of the time. At least 20% of recurrences happen within the first 12 weeks. This isn’t a failure of treatment so much as a feature of the virus: HPV can linger in surrounding skin cells that look normal, then reactivate.
Salicylic Acid: The Best Starting Point
Salicylic acid is the recommended first-line treatment for common and plantar warts. It works by dissolving the thick, hardened skin of the wart layer by layer, gradually exposing the infected tissue so your immune system can attack it. You can find it at any pharmacy as liquids, gels, pads, or medicated bandages.
The process is straightforward but requires patience. Soak the wart in warm water for five to ten minutes, then apply the salicylic acid directly to the wart. Let it dry. Many people cover the treated area with a bandage or piece of duct tape to keep the medication in place. Repeat this daily. Every few days, use a pumice stone or emery board to gently file away the white, dead skin. Most warts take six to twelve weeks of consistent daily treatment to fully clear.
The key word is consistent. Skipping days or forgetting to file down dead skin between applications slows the process considerably. If you’ve been diligent for two to three months and the wart hasn’t budged, it’s time to consider something stronger.
The Duct Tape Method
It sounds like folk medicine, but duct tape occlusion has actual clinical data behind it. In a randomized trial of patients aged 3 to 22, covering warts with small pieces of silver duct tape cleared 85% of warts completely, compared to 60% for liquid nitrogen freezing. The main downside was that the tape didn’t always stay on, and some people developed minor skin irritation.
The protocol from the study: cover the wart with a small piece of duct tape and leave it on for six days. On day six, remove the tape, soak the wart in water, and gently file it with a pumice stone or emery board. Leave the tape off overnight, then reapply the next morning. Continue this cycle for up to two months. Many dermatologists suggest using duct tape on top of salicylic acid for a combined approach, which the American Academy of Dermatology specifically recommends.
Freezing at the Doctor’s Office
Cryotherapy, where a doctor applies liquid nitrogen to freeze and destroy the wart, is one of the most common in-office treatments. The liquid nitrogen is extremely cold and kills the infected skin cells. A blister forms underneath the wart over the next day or two, and the dead tissue eventually peels away.
Clearance rates range from 39% to 84% at three months, depending on the size and location of the wart. Most people need one to three sessions spaced two to four weeks apart. The biggest drawback is pain. Freezing hurts during the procedure and can remain sore for a day or two afterward. Plantar warts on the sole of the foot tend to be the most painful to freeze because of their depth.
One important finding: combining salicylic acid with cryotherapy does not improve cure rates over either treatment alone. So if your doctor suggests freezing, you don’t necessarily need to layer on salicylic acid between visits unless the wart is particularly thick and needs debulking.
Cantharidin: The Blistering Agent
Cantharidin is a liquid derived from blister beetles that a dermatologist paints directly onto the wart. It’s painless during application, which makes it a good option for children or for warts in sensitive areas. The doctor first shaves or pares down the wart, applies the liquid, lets it dry, then covers it with non-porous tape for four to six hours.
A blister forms within 24 to 48 hours, lifting the wart away from the healthy skin underneath. Over the next few days the blister dries, and the wart often falls off with it. Healing is typically complete within four to seven days. If the wart doesn’t fully clear, the doctor can snip away the remaining blistered tissue or repeat the treatment.
Burning, Scraping, and Cutting
For warts that haven’t responded to topical treatments or freezing, dermatologists can physically destroy or remove them. Electrosurgery uses an electrical current to burn the wart, often followed by curettage (scraping away the charred tissue with a small surgical instrument). This combination usually clears the wart in a single session.
Surgical excision, where the wart is cut out entirely, also resolves the wart immediately. Both approaches require local anesthesia and leave a small wound that needs a week or two to heal. The tradeoff is speed: you walk out with the wart gone rather than waiting weeks for topical treatments to work. The downside is a small risk of scarring, which matters more for warts on visible areas like the hands or face.
Treatments for Stubborn Warts
Some warts resist everything. When standard treatments fail, dermatologists have several options reserved for these recalcitrant cases.
Laser therapy uses a pulsed dye laser to target the blood vessels feeding the wart. In a study of patients with warts that had resisted other treatments, 48% achieved complete clearance and another 45% partially cleared. Patients needed an average of 3.4 treatment sessions. Warts on the body and palms responded best, while plantar warts on the feet were the hardest to clear. Of those who fully cleared, 69% remained wart-free for an average of 11 months.
Immunotherapy takes a different approach by trying to wake up your immune system to recognize and fight the HPV infection. Imiquimod is a prescription cream that stimulates the local immune response. In clinical trials for genital warts, about 28% of patients achieved complete clearance with the cream compared to 9% with a placebo. That’s a modest number, but for warts that have survived everything else, even partial reduction can be meaningful.
Bleomycin, an injectable medication, is another option for warts that refuse to budge. A dermatologist injects it directly into the wart or applies it to the surface and pricks the skin to help it absorb. It’s typically reserved as a last resort because the injections can be painful.
Which Treatment to Try First
Start with salicylic acid at home. It’s cheap, widely available, and has the best evidence for a first attempt. Give it a full eight to twelve weeks of daily use before deciding it isn’t working. Adding duct tape occlusion can boost your results and costs nothing.
If home treatment fails, see a dermatologist. For most people, cryotherapy or cantharidin will be the next step. The choice often comes down to pain tolerance and location. Cantharidin is painless at application (good for kids or sensitive spots), while cryotherapy is faster and widely available. For a single stubborn wart you want gone immediately, electrosurgery or excision can resolve it in one visit.
Laser therapy and injectable medications are the end of the line, reserved for warts that have survived multiple rounds of other treatments. These are effective but more expensive, and they still can’t guarantee the wart won’t return. Whatever method clears the wart, keep an eye on the area for the first three months afterward, since that’s when recurrence is most likely.