Swift microwave therapy is an FDA-cleared, non-surgical treatment that clears warts by delivering precise microwave energy to trigger the body's own immune response against the virus. It works especially well on stubborn plantar warts that have not responded to freezing, acids, or over-the-counter products. There is no cutting, no anesthetic, and no downtime, and most patients need about three quick sessions. At Grandville Foot & Ankle, Swift is performed by Dr. Sarah Stewart, DPM.

If you have a painful plantar wart that keeps coming back no matter what you try, you are not alone, and you have a modern option. This page explains what Swift microwave therapy is, how it works, whether it hurts, how many treatments you may need, and why patients across Grandville, Grand Rapids, and West Michigan choose it for stubborn warts.

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What Is Swift Microwave Therapy?

Swift microwave therapy is a wart treatment that uses precise, low-dose microwave energy, delivered through a small handheld probe, to clear warts and verrucae. It is FDA-cleared and used by podiatrists specifically for warts on the feet, including plantar warts. Rather than burning, freezing, or cutting the wart away, Swift works with your immune system to attack the virus that causes the wart.

What Does Swift Treat?

Swift is used to treat warts caused by the human papillomavirus (HPV), most often plantar warts (verrucae) on the sole of the foot. It is frequently chosen for warts that have proven stubborn or keep recurring. Swift can treat:

  • Plantar warts on the bottom of the foot, including painful, deep-seated ones
  • Stubborn or resistant warts that have not cleared with acids, cryotherapy (freezing), or over-the-counter treatments
  • Recurring warts that come back after other treatments
  • Multiple or mosaic warts, where several warts cluster together
  • Warts in children and adults, thanks to its quick, no-cut approach

Swift is one part of the full range of nail and skin care offered at Grandville Foot & Ankle.

How Does Swift Microwave Therapy Work?

Swift works by using heat to switch on your body's own defenses against the wart virus. The applicator delivers a controlled burst of microwave energy that gently raises the temperature of the wart tissue to a set depth for a couple of seconds. That heat stimulates a localized immune response, helping your immune system recognize the HPV virus hiding inside the wart.

Once your immune system identifies the virus as a threat, it mounts a targeted response to clear it, treating the root cause instead of just the surface bump. This is why Swift can succeed with warts that regrow after being frozen, burned, or shaved: those wart removal methods take off the visible wart, but Swift helps your body eliminate the underlying infection.

What to Expect During a Swift Treatment

A Swift appointment is quick and straightforward, usually taking about 10 to 15 minutes with only seconds of active treatment. Here is what a typical session looks like:

  1. Examination and prep: Dr. Stewart confirms the diagnosis and may gently reduce thick skin over the wart. No numbing injection is needed.
  2. Apply the Swift probe: the handheld applicator is placed on the wart and delivers a short burst of microwave energy lasting about one to two seconds.
  3. Repeat applications: a few applications are made to each wart in the same visit, so total active treatment is only about 10 seconds to a couple of minutes.
  4. Walk out with no dressing: because nothing is cut and there is no open wound, no bandage is required and you return to normal activities right away.
  5. Return for follow-up: most warts need about three sessions spaced roughly four weeks apart to let the immune response work between visits.

Does Swift Microwave Therapy Hurt?

Most patients feel a brief heat or scratching sensation during each short burst of energy, often compared to a small injection, that fades quickly once the application stops. Because nothing is cut and there is no open wound, there is typically no lingering pain afterward and no tender dressing to manage. Swift is generally well tolerated by both adults and children, which makes it a comfortable option for families.

How Many Treatments Will I Need, and Does It Work?

Most patients need about three Swift sessions spaced roughly four weeks apart, though the exact number depends on the size, number, and age of the warts. The published evidence is encouraging: a 2023 study of 150 plantar warts found that 83.3% resolved after an average of 2.8 microwave sessions, with younger patients responding best (Hagon et al., 2023, Journal of Foot & Ankle Research). Individual results vary, and Dr. Stewart will give you a realistic picture based on your specific warts.

Swift vs. Traditional Wart Treatments

Feature Swift Microwave TherapyOffered at Grandville Foot & Ankle Cryotherapy, Acids & OTC TreatmentsTraditional approaches
Cutting or breaking the skin None Sometimes (blistering, open areas)
Anesthetic required No Usually no, but can be painful
Dressings or wound care None Often needed
Downtime None — resume activity immediately Possible soreness or blistering afterward
Targets the HPV virus Yes — activates the immune response Mainly removes the surface wart
Good for stubborn, recurring warts Yes — a common reason patients choose it Often less effective on resistant warts
Typical visits About three sessions, 4 weeks apart Varies, often many repeated applications

Treatment plans are individualized. Dr. Stewart will recommend the approach best suited to your wart type, location, and history.

Who Is a Candidate for Swift?

Swift is a strong option for most people with a stubborn or painful wart, especially one that has resisted other treatments. It is a particularly good fit for children, athletes, and busy patients because there is no cutting and no downtime. Good candidates include:

  • Patients with plantar warts that have not cleared with freezing, acids, or over-the-counter products
  • Anyone with recurring, multiple, or mosaic warts
  • Children and adults who prefer a no-cut, no-dressing approach
  • Athletes who pick up warts in locker rooms, pools, and shared showers and want to stay active during treatment

Swift may not be recommended during pregnancy, for patients with a pacemaker or metal implant near the treatment area, or for those with significantly reduced sensation in the foot. Because warts on the foot can also be confused with other conditions, and because certain patients need extra care, Dr. Stewart reviews your history and examines the area first to confirm Swift is safe and appropriate for you.

Why Choose Grandville Foot & Ankle for Swift Wart Treatment?

Warts are common and usually harmless, but a stubborn one on your foot can be painful, embarrassing, and frustrating to get rid of. Grandville Foot & Ankle is a small, independent practice where Dr. Sarah Stewart, DPM provides one-on-one, family-friendly care from diagnosis through follow-up. Patients across West Michigan choose our office for:

  • Advanced, evidence-based options like Swift microwave therapy for warts that keep coming back
  • Accurate in-office diagnosis to confirm a wart and rule out lookalike conditions
  • A comfortable, no-cut, no-downtime experience that works well for children and active adults
  • A personalized plan that may combine Swift with other skin and nail care when needed
  • Compassionate care focused on long-term results, not just clearing the surface

Grandville Foot & Ankle proudly provides Swift wart treatment to patients throughout West Michigan, including Grandville, Grand Rapids, Wyoming, Jenison, Hudsonville, Byron Center, Walker, Kentwood, Allendale, Cascade, East Grand Rapids, Ada, Forest Hills, Caledonia, Holland, and Zeeland.

Grandville Foot & Ankle
3550 Fairlanes Ave. SW, Suite 1
Grandville, MI 49418
Phone: 616-534-3920  |  Fax: 616-534-0801

We accept most major insurance plans, including Blue Cross Blue Shield, Aetna, UnitedHealthcare, Priority Health, and Medicare, and our team is happy to review coverage and cash-pay options with you.

Schedule Your Swift Wart Treatment

You do not have to keep battling a wart that will not go away. Find out whether Swift microwave therapy is right for you and get a clear plan to clear the wart for good. Request an appointment online or call our Grandville office at 616-534-3920 to get started.

Swift Microwave Therapy FAQs

What is Swift microwave therapy?

Swift microwave therapy is an FDA-cleared, non-surgical wart treatment that delivers precise, low-dose microwave energy into a wart through a handheld probe. The energy gently heats the tissue for a few seconds, triggering an immune response that helps the body clear the HPV virus causing the wart. There is no cutting, no anesthetic, and no dressing.

Does Swift microwave therapy work on plantar warts?

Yes. Swift is designed specifically for warts and verrucae, including plantar warts on the bottom of the foot, and it is often chosen for stubborn warts that have not cleared with acids, freezing, or over-the-counter products. In one 2023 study of 150 plantar warts, 83.3% resolved after an average of about three microwave sessions.

How does Swift get rid of warts?

Swift heats the wart tissue in a controlled way, which stimulates your immune system to recognize the HPV virus inside the wart. Once the immune system identifies the virus, it mounts a targeted response to clear it. This treats the root cause rather than only removing the surface, which is why it can work on warts that keep coming back.

Does Swift microwave therapy hurt?

Most patients feel a brief heat or scratching sensation during each short burst of energy, similar to a small injection, that fades quickly once the application stops. Because nothing is cut and there is no open wound, there is typically no lingering pain afterward. Swift is generally well tolerated by both adults and children.

How many Swift treatments will I need?

Most patients need about three Swift sessions spaced roughly four weeks apart, though the exact number depends on the size, number, and age of the warts. The gap between visits gives your immune system time to respond. Dr. Stewart will outline an expected plan after examining your warts.

Is there any downtime after Swift microwave therapy?

No. Swift requires no cutting, dressings, or wound care, so there is no downtime. You can put your shoes back on and return to work, school, and normal activities immediately after your appointment.

Who should not have Swift microwave therapy?

Swift is safe for most people, but it may not be recommended during pregnancy, for patients with a pacemaker or metal implant near the treatment area, or for those with significantly reduced sensation in the foot. Dr. Stewart reviews your medical history first to confirm that Swift is a safe and appropriate choice for you.

How effective is Swift for stubborn warts?

Swift is often used for warts that have resisted other treatments. Published clinical data are encouraging: a 2023 study reported that 83.3% of plantar warts resolved after an average of 2.8 microwave sessions, with younger patients responding best. Results vary by individual, and Dr. Stewart will give you a realistic picture based on your specific warts.