There are two treatment options available for removal of small (less than 1 mm in diameter) leg veins. The first option is sclerotherapy. This treatment involves injecting a small amount of a sclerosing agent in the vessels, which destroys them. The main side effects are burning, cramping, and irritation in the area. The advantages of this treatment are that it is safe, effective, and affordable. (Insurance does not usually cover this procedure) Another treatment for leg veins is laser therapy. This procedure involves sending a pulse of intense light through the skin that selectively destroys the vessels. The advantages of laser are that it can treat vessels too small for sclerotherapy and that it is virtually pain free. See your dermatologist to determine the best treatment for spider veins.