Sclerotherapy for Spider Veins

This is the most common treatment for both spider veins and varicose veins. The doctor injects a solution into the vein that causes the vein walls to swell, stick together, and seal shut. This stops the flow of blood and the vein turns into scar tissue. In a few weeks, the vein should fade. The same vein may need to be treated more than once.

This treatment is very effective if done the right way. Most patients can expect a 50% to 90% improvement. Microsclerotherapy uses special solutions and injection techniques that increase the success rate for removal of spider veins. Sclerotherapy does not require anesthesia, and can be done in the doctor's office.

Possible side effects include:

• Temporary stinging or painful cramps where the injection was made
• Temporary red raised patches of skin where the injection was made
• Temporary small skin sores where the injection was made
• Temporary bruises where the injection was made
• Spots around the treated vein that usually disappear
• Brown lines around the treated vein that usually disappear
• Groups of fine red blood vessels around the treated vein that usually disappear

The treated vein can also become inflamed or develop lumps of clotted blood. This is not dangerous. Applying heat and taking aspirin or antibiotics can relieve inflammation. Lumps of coagulated blood can be drained.