What procedure involves injections to eliminate spider veins and varicose veins?

Sclerotherapy is the procedure specifically designed to treat spider veins and varicose veins. This minimally invasive technique involves the injection of a solution directly into the affected veins. The solution irritates the lining of the blood vessel, causing it to collapse and eventually scar, which helps to diminish the appearance of the veins over time. By obstructing the flow of blood within these veins, the body reroutes the blood to healthier veins, thus improving the overall appearance and reducing symptoms associated with these venous conditions.

Other choices, such as disinfection, exfoliation, and distillation, do not relate to the treatment of vascular issues. Disinfection refers to the process of cleaning to destroy bacteria and viruses; it is not a vein treatment. Exfoliation involves the removal of dead skin cells to improve skin texture and appearance, while distillation is a method used for purification or separation of liquids and has no relevance to vein treatment at all. Hence, sclerotherapy stands out as the appropriate and targeted treatment for spider veins and varicose veins.