Sclerotherapy is a medical procedure used to treat varicose veins and “spider veins.” During sclerotherapy, the physician injects a solution directly into the affected vein. The solution irritates the lining of the vessel, causing it to swell and stick together. Over time, the vessel turns into scar tissue that fades from view. Sclerotherapy is a well-proven procedure and has been used since the 1930s. Sclerotherapy is performed in our Vein Center of North Florida office.