In most cases, spider vein treatment is considered cosmetic and isn't covered by insurance unless there's a medical necessity, which is pretty rare since spider veins usually don't cause physical symptoms. It's worth checking with your insurance provider though, as policies vary. As for costs, it depends on the extent of the treatment area and how many sessions you need. Some people only need one session, while others might need two or three spaced several weeks apart. After the initial treatment, you may or may not need touch-ups years down the line if new veins develop. Many clinics offer consultation appointments where they can assess your situation and give you a better idea of what to expect cost-wise. It's definitely worth getting a clear breakdown upfront so there are no surprises.