Injection Sclerotherapy Treatment How is sclerotherapy treated? It's often considered the treatment of choice for small varicose veins. Sclerotherapy involves injecting a solution directly into the vein. The sclerotherapy solution causes the vein to scar, forcing blood to reroute through healthier veins. The collapsed vein is reabsorbed into local tissue and eventually fades What are the risks of sclerotherapy? Common side effects of sclerotherapy include: bruising. stinging. swelling. skin discoloration. discomfort. raised red areas that appear around the injection sites. What should I avoid after sclerotherapy? What Should Patients Avoid After Sclerotherapy? Being exposed to direct sunlight. Going into a whirlpool. Sitting in a sauna. Taking hot showers or baths. Participating in strenuous exercises or sports, such as weight-lifting, jogging, tennis, and jumping. Applying compresses (hot) to the treatment area. What is the fastest way to recover from sclerotherapy? The recovery time required after sclerotherapy is generally very quick. You'll be encouraged to walk around soon after your sclerotherapy treatment. You will most likely be able to get back to your regular activities on the same day. You'll need to wear compression stockings or bandages for about two weeks.