What is Sclerotherapy?

Sclerotherapy is an injection-based treatment aimed at reducing or eliminating the appearance of spider veins (telangiectasias), reticular veins, and varicose veins. It is typically recommended after addressing larger underlying vein reflux issues with our advanced venous ablation techniques.

We strongly encourage patients to undergo a comprehensive reflux venous ultrasound study before opting for sclerotherapy alone. This helps identify any deeper vein issues and reduces the risk of recurrence. If the ultrasound reveals other underlying issues, your vascular surgeon will likely recommend treating those first before proceeding with sclerotherapy.


The image above shows the typical sclerotherapy procedure using a fine needle and a small amount of sclerosant.

How Does Sclerotherapy Work?

During sclerotherapy, a physician or advanced practice provider injects a sclerosant medication directly into the spider or varicose veins using a small needle.

The medication typically used is polidocanol (brand name Asclera), an FDA-approved solution designed to irritate and damage the inner lining of the target veins, causing them to clot.

After the clots form, the body gradually turns the clotted veins into scar tissue and reabsorbs them, reducing or eliminating their visibility.

In some cases, the sclerosant may be mixed with air to create a foam, enhancing its effectiveness in treating the veins.

What is the Recovery Like for Sclerotherapy?

Immediately after sclerotherapy, you can walk out of our Fox Valley Surgical clinic without any special precautions. However, to maximize the effectiveness of the treatment, we recommend wearing compression stockings.

To ensure optimal results, avoid the following for 2 weeks after the procedure:


Wearing compression stocking after sclerotherapy has shown to improve appearance and results.

Your Experienced Vascular Team

Dr. Robert Ballard

Robert Ballard, MD

Dr. Alexander Tretinyak
Alexander Tretinyak, MD
Sarah Wilson, MD
Sarah Wilson, MD
Dr. Jason Le
Jason Le, MD
Ariel Stilp
Ariel Stilp, APNP