Sclerotherapy is a process that uses injections of a sclerosing agent to dissolve and eliminate affected veins.
The physician or nurse uses a tiny needle to inject the solution directly into the vein. This solution displaces the blood in the vein, causing it to collapse.
The procedure eliminates the veins from view, and can also alleviate some of the symptoms that sometimes accompany them, such as aches, cramps, swelling, or burning sensations. While sclerotherapy is most commonly used for treating spider veins, it can also sometimes be used to treat minor varicose veins in certain patients.
Sclerotherapy may require multiple treatment sessions for optimal results, with healing time varying on an individual basis. Spider veins typically start to fade within three to six weeks after treatment, whereas it can take several months to see results for varicose veins.