As a respected therapy, sclerotherapy (sclero) has been an effective treatment for varicose and spider veins since the 1930's. Sclerotherapy is a medicalprocedure used to eliminate varicose veins and spider veins. The procedure involves the injection of a solution directly into the vein, using a small syringe with a micro-needle. The solution displaces blood within the vein, and causes the vein to shut down. These injections can cause some mild discomfort, but this passes rather quickly. Treated veins will gradually disappear, but may take up to 6 weeks to completely fade.Depending on severity and desired results, multiple sclerotherapy treatments may be needed. Dr. Mash & Associates adapted their sclerotherapy treatments to include the saline flush technique. This technique has been shown to prevent a number of potential medical issues which have occurred in traditional sclero procedures.