laser treatment for veins and spider veins With the Fotona laser, spider veins can be safely treated and significantly improved. Pulses of laser light are delivered directly into the vein area and these pulses cause the vein to collapse, restoring a more natural, smooth look to the skin. It is this visually appealing result that so many patients are excited about when exploring spider vein treatments. Some patients will need multiple treatments, but many see immediate results after a single session. Treatments typically take between 15 and 30 minutes with no downtime.