Sclerotherapy is the most commonly used treatment for spider veins. A solution, called a sclerosing agent is injected into the veins to break down the veins walls. Once the medication is injected, it causes inflammation of the vein walls and causes them to stick together, collapsing the walls. This solution and the use of compression stockings, effectively prevents the vein from working and stops carrying blood. Therefore the vein is absorbed by the body with time. The majority of individuals who receive sclerotherapy treatments have visible improvement. Compression and walking improves circulation, which will enhance the outcome of the treatment. The number of treatments needed vary for each individual, consult with the physician on the proper number of treatments you may need.