Sclerotherapy treats veins that are twisted and enlarged, known as varicose veins. Varicose veins are usually in the legs. Sclerotherapy also treats spider veins, a mild form of varicose veins. Sclerotherapy usually works best on small varicose veins.
Sclerotherapy involves using a needle to put a solution into the vein. The sclerotherapy solution causes the vein to scar. The scarring forces blood through healthier veins. The collapsed vein then fades.
After sclerotherapy, treated veins tend to fade within a few weeks, although they might not disappear completely. It can take a month or more for full results. Some veins need more than one sclerotherapy treatment.
