Does Sclerotherapy Hurt?

Medically reviewed by Ki Jung, DO, on November 24, 2025

You’ve seen the telltale signs: tiny spider veins, bulging varicose veins, or persistent leg pain and swelling that won’t go away. You’ve done your research and spoken with friends about sclerotherapy to ease the emotional and physical discomfort caused by problem veins. What you’ve learned is that the effectiveness of the vein treatment procedure for relieving leg veins is undisputed, but one question lingers: Does sclerotherapy hurt? 

That’s where Center for Vein Restoration (CVR), America’s trusted authority in diagnosing and treating vein disease, can help. 

We consulted with Dr. Ki Jung, a board-certified vein specialist at CVR, to explain what patients can expect before, during, and after sclerotherapy. From how the procedure feels to how quickly you can return to normal activities, Dr. Jung walks you through every step so you can make an informed decision about your vein health.

To schedule an appointment with Dr. Jung in Wilmington, Delaware, CLICK HERE

To schedule an appointment at any of CVR’s other 120+ vein clinics nationwide, CLICK BELOW 🔽

What Causes Problem Veins?

Your leg veins work hard to push blood upward, against gravity, back to your heart. Inside each vein are tiny one-way valves that open and close to keep blood flowing in the right direction. When these valves weaken or fail, blood pools in the lower legs, increasing pressure in the vein walls.

Over time, this pressure stretches the veins, leading to visible varicose veins and spider veins, as well as symptoms like leg pain, swelling, heaviness, itching, and fatigue. This condition, known as chronic venous insufficiency (CVI) or vein disease, affects up to 40 percent of adults, according to the Society for Vascular Surgery.

Enter sclerotherapy: a quick, office-based treatment that tackles the root of vein problems and delivers lasting relief.

CVR specialists perform this minimally invasive procedure every day and want to take the mystery out of the process. Sclerotherapy is one of the safest, most effective ways to close those malfunctioning surface veins and redirect blood flow to healthy veins nearby.

What Is Sclerotherapy?

Sclerotherapy is a minimally invasive outpatient procedure used to treat spider veins and small-to-medium varicose veins. It’s performed in a vein specialist’s office with no hospital stay, anesthesia, or lengthy recovery required!

During the procedure, a CVR vein doctor injects a small amount of a medical solution, called a sclerosant, directly into the problem vein. This solution irritates the vein's inner lining, causing it to collapse and seal shut. The body naturally reroutes blood to healthier veins, and over time, the treated vein fades from view.

There’s no need for anesthesia because the needle is extremely fine, about the width of a strand of hair. The procedure typically takes 15–30 minutes, depending on the number of veins being treated. Many patients are surprised by how quick and tolerable it is.

What Does Sclerotherapy Feel Like? 

Here’s the honest answer: most people describe it as mildly uncomfortable, not painful.
You may feel a brief stinging, tingling, or warm sensation as the solution is injected, or a slight cramp if a larger vein is treated. The feeling usually lasts only a few seconds. 

But don’t take our word for it alone. The Mayo Clinic also describes the process as “nearly painless and quick,” noting that most patients experience only mild discomfort during the injection.

Ready to find out for yourself what this safe, comfortable procedure can do for you?

 Schedule a consultation with a Center for Vein Restoration vein specialist and discover how quick, comfortable, and effective modern vein treatment can be. Our board-certified vein doctors perform sclerotherapy and other minimally invasive procedures every day—helping patients relieve symptoms, improve circulation, and feel confident in their legs again.

📞 Call Center for Vein Restoration at 240-249-8250
📅 Or book online HERE

What to Expect After Sclerotherapy

You’ll be able to walk immediately after sclerotherapy, and most people return to work and normal activities the same day. Your vein doctor will likely recommend wearing compression stockings for several days to promote circulation and reduce swelling.

Here’s what’s typical during recovery:

• Mild soreness or bruising at the injection sites (resolves within a few days)
• Temporary redness or itching, which may last a few hours
• Fading of treated veins over the next few weeks; smaller veins usually disappear within 3–6 weeks, while larger varicose veins may take up to 3–4 months
• Improved leg comfort as pressure and pooling decrease

To maximize results, you’ll be encouraged to walk daily, but to avoid strenuous exercise, saunas, or direct sun exposure on treated areas for a short time.

Patients should avoid hot baths or tanning for 48 hours and wear compression stockings continuously for the first 2–3 days.

Is Sclerotherapy Worth It?

For many people, absolutely. Sclerotherapy doesn’t just improve the appearance of your legs; it can also relieve the discomfort caused by chronic venous insufficiency. When unhealthy veins are closed off, pressure decreases, blood flow improves, and the symptoms of vein disease, such as aching, swelling, and heaviness, often improve dramatically.

Clinical studies published in the National Library of Medicine (NIH) show that modern sclerotherapy achieves an 80–90 percent success rate in eliminating treated veins, with minimal complications and long-term satisfaction for most patients.

Patients frequently report that the brief discomfort of the injections was far outweighed by the confidence and comfort they gained afterward.

Who’s a Good Candidate for Sclerotherapy?

You might benefit from sclerotherapy if you have:

• Small or medium varicose veins or spider veins
• Leg pain, heaviness, or burning after standing or sitting
• Swelling or fatigue in your lower legs
• Skin discoloration or visible clusters of blue or red veins
• A desire to improve the look and feel of your legs

However, sclerotherapy isn’t for everyone. If you have a history of blood clots, are pregnant, or have certain medical conditions, your CVR vein specialist will discuss other treatment options.

At Center for Vein Restoration, your vein evaluation includes a simple, noninvasive ultrasound to detect deeper vein issues, such as venous reflux. This helps your vein specialist treat both the visible veins and the underlying cause of your symptoms. 

Schedule your consultation today to get a clear diagnosis and a personalized treatment plan that restores comfort and confidence in your legs.

Modern Vein Treatment Is Quick, Safe, and Minimally Invasive

Recent research reported by the National Library of Medicine (NIH) highlights how modern varicose vein treatments have come a long way from traditional surgery, including “vein stripping procedures. 

Today’s minimally invasive procedures, such as laser ablation, radiofrequency ablation (RFA), mechanochemical ablation (MOCA), and foam sclerotherapy, are safer, faster, and far less painful than older techniques. These innovations not only improve circulation and leg comfort but also deliver higher patient satisfaction and quicker recovery.

👉 Book your consultation with a CVR vein specialist today and discover how simple relief can be.

The Bottom Line on Sclerotherapy: Safe, Quick, and Virtually Painless

Sclerotherapy is well-tolerated, and discomfort is minimal. Most patients describe the sensation as a mild burning or pressure lasting less than a minute. Does sclerotherapy hurt? Only for a moment—and for most people, it’s no worse than a quick mosquito bite. The real relief comes afterward: legs that feel lighter, look healthier, and move without the drag of pressure or pain. 

When performed by an experienced CVR vein expert, sclerotherapy is a safe, fast, and effective vein treatment, a simple step toward healthier legs and renewed confidence.

Schedule Your Consultation at Center for Vein Restoration Today!
Take the first step toward comfort and confidence. Your legs deserve it.

Call 240-249-8250 to speak with a Patient Services Representative or schedule your consultation online at a CVR near you today.

Frequently Asked Questions

1. Does Sclerotherapy Hurt?
Most people describe sclerotherapy as mildly uncomfortable, not painful. You may feel a brief sting, tingling, or warmth during the injection that fades within seconds—and for most, it’s no worse than a quick mosquito bite.

2. How Long Does It Take to Recover After Sclerotherapy?
You can walk immediately after treatment and return to normal activities the same day. Minor bruising or redness is common, but most veins fade within weeks as your legs start to feel lighter and more comfortable.

3. Is Sclerotherapy Safe?
Yes. When performed by an experienced vein expert at Center for Vein Restoration, sclerotherapy is a safe, proven, and minimally invasive vein treatment with a long track record of success and patient satisfaction.

4. Who Is a Good Candidate for Sclerotherapy?
Sclerotherapy is most effective for people with small or medium varicose veins, spider veins, or symptoms such as leg pain, swelling, or heaviness. Your CVR vein specialist will perform a noninvasive ultrasound to check for deeper venous reflux and create a customized treatment plan for lasting relief.

5. How Soon Will I See Results After Sclerotherapy?
Smaller spider veins often fade within three to six weeks, while larger varicose veins may take a few months to disappear. As circulation improves, patients typically notice less leg pain, swelling, and heaviness, along with smoother, vein-free legs.