depending on how small they are lasers can be very effective in treating spider veins. i don't recommend lasers to the external surface of the skin for treating varicose veins. there are some lasers that are done within the skin by actually cutting into the vein and eliminating it that way and those are done by specialized dermatologist or vascular surgeons. but lasers on the surface can be effective for the very small spider veins. i have found though that for most spider veins sclerotherapy which is in injecting a specific ingredient that helps eliminate those veins works much better than lasers. once you have the smallest vessels left behind laser then works very well. also for varicose veins or the spider veins on the ankles i find laser as a treatment of choice in that area.
i have spider veins and varicose veins on my legs as a result of pregnancy and age. will lasers really zap those?