Sclerotherapy for Spider Veins

Large varicose veins do not respond as well as small ones to sclerotherapy.  A few (less than 10 percent) of people who have sclerotherapy do not respond to the injections at all.  In these instances, different solutions or a different method, such as external laser therapy, many have to be used.  Polidocanol, an FDA approved drug, irritates the inner lining of the spider vein and chemically seals it shut without pain.  Compression hose are recommended for a least five days after sclerotherapy.

If you have larger veins supplying the spider veins, the larger veins should be closed first to insure successful spider vein closure.  If you have had sclerotherapy in the past and the spider veins seem to be returning in the same area, your physician may advise that you undergo a duplex ultrasound scan to see if there is a problem with the larger vessels underneath.  If this is found, EVLA may be recommended to close the bigger veins.