Sclerotherapy: A chemical solution is injected to close off little varicose and spider veins (Cleveland Clinic). Varicose veins are twisted veins which have been swollen and infrequently look blue or dark purple. These arise once the valves in your veins never purpose correctly, that may then bring on blood pooling https://princedirectory.com/listings13531223/varicose-veins-laser-surgery-for-dummies