Patients describe a range of sensations from tingling to the snap of a rubber band during the treatment.

A series of treatments may be needed to fully clear blood vessels and reduce the appearance of the veins completely. Typically, one to four sessions are needed for desired results.

Many patients experience immediate improvement in the appearance of their veins following the treatment followed by continued improvement over the next week or so.

Injection of Sclerotherapy (spider veins) effectively treats spider veins. It's often considered the treatment of choice for small veins. Sclerotherapy involves injecting a solution directly into the vein. The sclerotherapy solution causes the vein to scar, forcing blood to reroute through healthier veins. The collapsed vein is reabsorbed into local tissue and eventually fades. After sclerotherapy, treated veins tend to fade within a few weeks, although occasionally it may take a month or more to see the full results. In some instances, several sclerotherapy treatments may be needed. Sclerotherapy is often done for cosmetic purposes - to improve the appearance of spider veins.