Sclerotherapy is a form of spider vein treatment performed by Serrano Kidney and Vascular Access Center (KVAC) of California that is used to remove spider veins from the legs.
The oldest and most common treatment for spider veins on the legs is sclerotherapy. This involves injection of a sclerosing agent into the spider veins, which irritates the vessels, causing them to scar and become less noticeable. Often, varicose veins do not actually go away, but become less visible because of the reaction around the walls of the vein. The injections may sting a bit, especially if saline is used, but the discomfort does not last long.
In general, spider veins respond to sclerotherapy in 3 to 6 weeks, and larger veins respond in 3 to 4 months. If the veins respond to the vein treatment, usually they will not reappear. However, new veins may appear over time. If needed, you may return for injections.