Risks include, blood clots forming, severe inflammation, and adverse allergic reaction to the sclerosing agent.
For laser light vein therapy, patients may experience mild burning. Bruising may also occur around the treated area, but usually disappears after the first week.
The most common complication that can occur with both laser light and injection sclerotherapy is discoloration of the skin, usually brown in color. This condition may eventually fade from the skin.
Spider vein removal will only dissipate or remove existing spider veins. It does not prevent future spider veins from forming.