This is a method by which spider veins can be eradicated. No anesthesia is required. The procedure is the current state of the art for spider vein elimination. A usual treatment takes about 20-30 minutes. The veins are injected with a liquid solution which is converted into a foam (sort of like a shaving cream). The foam then spreads throughout the spider veins. Over a few weeks, these veins will dissolve. Sometimes several treatments may be necessary.