Thread Vein Removal. Red veins (or spider veins) are red and blue veins that are just below the surface of the skin. They may appear as tiny blemishes or can cover a large area of the legs, sometimes seen as a bruise.
Sclerotherapy is a technique used to improve the appearance of unwanted thread veins. This procedure takes approximately 30 minutes and involves a small amount of solution being injected into the tiny veins, which will then fade away over a period of 2 to 8 weeks.
Multiple treatments may be required.