They're most common in the legs and ankles. They usually aren't serious. Sclerotherapy uses an injection of a special chemical (sclerosant) into a varicose vein to damage and scar the inside lining of ...

Major complications as a result of re-injections occurred in two patients ... Esophageal stricture associated with the initial sclerotherapy treatment did not recur, however.

Sclerotherapy—a liquid injection to break down spider veins—is the most popular treatment for spider and small varicose veins. However, laser therapy is another effective option. With these ...

Lasers, however, are a good option for treating delicate areas and for people who are allergic to the injection solution. Doctors often use a combination of sclerotherapy and lasers: sclerotherapy ...