Varithena injectable foam is for the treatment of incompetent Saphenous veins, accessory veins, and visible varicosities of the Saphenous system above and below the knee. Varithena improves the symptoms of superficial venous reflux and the appearance of visible varicosities. Dr. Messier injects a small amount of Varithena into the vein under ultrasound guidance. The microfoam fills and treats the desired section of the vein. The diseased vein collapses, and the foam is diluted in the bloodstream and flushed out.