Warts are one of those skin conditions that seem simple until they turn out not to be. Most people reach for a drugstore freezing kit or a salicylic acid pad first, and for some warts, that is genuinely enough. But warts that have been around for months, keep coming back, or show up on sensitive areas like the hands, feet, or face often need a different approach entirely, and knowing the difference can save patients a lot of frustration.
What Causes Warts in the First Place
Warts are caused by the human papillomavirus, or HPV, entering the skin through a small break or crack, often one too minor to notice. There are more than one hundred strains of HPV that can cause skin warts, which is part of why they show up in so many different forms, from the rough, raised common wart on the hands to flat warts on the face to plantar warts on the soles of the feet that grow inward under pressure from walking.
Because the virus lives in the skin cells themselves rather than on the surface, treatments that only address the visible bump often leave the underlying infection intact, which is the main reason warts have a reputation for coming back after seemingly successful treatment.
Why Over-the-Counter Treatments Sometimes Fall Short
Salicylic acid, the active ingredient in most drugstore wart treatments, works by gradually dissolving the thickened, infected skin layer by layer. It can be effective for smaller, newer warts with consistent daily use over several weeks. What often goes unmentioned is that inconsistent application, which is common given the multi-week commitment required, is one of the biggest reasons at-home treatment fails, not a flaw in the product itself.
Over-the-counter freezing kits face a different limitation. They typically reach far colder temperatures than professional cryotherapy but cannot be controlled or targeted with the same precision, which means they are less effective at reaching the base of the wart where the virus lives, particularly for thicker or long-standing warts.
Professional Wart Treatment Options
When over-the-counter methods have not resolved a wart after several weeks, or when a wart is painful, spreading, or located somewhere sensitive, in-office treatment offers options that are simply not available at the drugstore.
Professional cryotherapy uses liquid nitrogen applied at a controlled depth and duration to freeze the wart tissue precisely, causing it to blister and shed over the following one to two weeks. Because a dermatologist can adjust the technique based on the wart’s size and location, this method is often more effective per session than at-home freezing kits.
For warts that resist cryotherapy, options include cantharidin, a topical blistering agent applied in-office that causes the wart to lift away from the skin, and minor excision or electrosurgery, in which the wart tissue is carefully removed or destroyed under local anesthesia. Some stubborn or recurrent warts also respond well to a series of treatments spaced several weeks apart, since HPV in the surrounding skin sometimes requires more than one round to fully clear.
Are Plantar Warts Treated Differently?
Plantar warts, which grow on the soles of the feet, are often thicker and more deeply rooted than warts elsewhere on the body because the pressure of walking pushes them inward rather than outward. This makes them more resistant to standard treatment and, for many patients, more uncomfortable, since a wart the size of a coin can feel like walking on a small pebble.
Because of this depth, plantar warts frequently require a combination approach, such as debridement of the thickened surface layer followed by cryotherapy or a topical agent applied directly to the exposed base. Multiple sessions are common, and patience is genuinely part of the process here more than with warts in other locations.
When Should You See a Dermatologist for a Wart?
A wart is worth a professional evaluation when it has not responded to several weeks of consistent over-the-counter treatment, when it is painful, rapidly growing, or bleeding, or when it appears on the face, genitals, or in large clusters. Warts in these situations are less likely to respond to at-home methods and more likely to benefit from a targeted in-office approach.
It is also worth noting that not every rough or raised bump is a wart. Skin tags, seborrheic keratoses, and, in rare cases, more concerning lesions can resemble a wart to the untrained eye. Any bump that looks unusual, changes over time, or does not fit the typical appearance of a wart should be evaluated by a dermatologist rather than assumed and treated at home.
What to Expect at an In-Office Wart Treatment Appointment
Most professional wart treatments are quick, in-office procedures that do not require significant downtime. Cryotherapy typically takes only a few minutes per wart, and while the area may sting, blister, or feel tender for a few days afterward, most patients return to normal activities immediately. Larger warts or those requiring excision may need a short recovery period and simple wound care instructions.
Because HPV can persist in the surrounding skin even after a wart is successfully treated, a dermatologist may recommend a follow-up visit to check for recurrence or spread, particularly for patients who have dealt with the same wart more than once.
Frequently Asked Questions
Why do my warts keep coming back after treatment?
Warts are caused by HPV living within the skin, not just on the surface, so treatments that clear the visible bump do not always eliminate the virus in the surrounding tissue. This is why recurrence is common and why some warts need more than one round of treatment.
Is professional wart removal painful?
Most in-office treatments, such as cryotherapy, cause brief stinging or a cold sensation during the procedure and mild tenderness afterward. Procedures that require local anesthesia, such as excision, are generally not painful during the treatment itself.
How many treatments does it typically take to clear a wart?
This varies by wart size, location, and how long it has been present. Smaller, newer warts sometimes clear in one to two sessions, while thicker or long-standing warts, especially plantar warts, often need several sessions spaced weeks apart.
Can warts spread to other parts of the body?
Yes. Because warts are caused by a virus, they can spread through skin-to-skin contact or from touching a wart and then touching another area of skin, which is one reason dermatologists recommend not picking or scratching at them.
Are all skin bumps that look like warts actually warts?
Not necessarily. Skin tags, seborrheic keratoses, and other growths can resemble warts. Any bump that looks unusual or is not responding to typical treatment should be evaluated by a dermatologist to confirm what it actually is.
The Bottom Line
Warts are common, but the treatment that works for one patient may not work for another, and a wart that resists home treatment usually needs a professional approach rather than a stronger at-home product. Derrow Dermatology’s Maitland office treats warts of all types for patients throughout Central Florida, from first-time cases to those that have proven stubborn with at-home methods. To schedule an evaluation, call (407) 389-2020.
