It's possible that you may have an allergic reaction to the solution used for treatment, but this is uncommon.īefore the procedure, your doctor performs a physical exam and gathers your medical history. These symptoms generally go away, but call your doctor if you experience problems with limb movement or sensation after the procedure. These don't always cause symptoms, but if they do, symptoms include visual disturbances, headaches, fainting and nausea. Tiny air bubbles may rise in your bloodstream. Seek immediate medical care if you experience difficulty breathing, chest pain or dizziness, or you cough up blood. Rarely, a blood clot may travel to a deeper vein in your leg (deep vein thrombosis).ĭeep vein thrombosis carries a risk of pulmonary embolism (a very rare complication of sclerotherapy), an emergency situation where the clot travels from your leg to your lungs and blocks a vital artery. A lump of clotted blood may form in a treated vein that may require drainage.
Your doctor may suggest an over-the-counter pain reliever such as aspirin or ibuprofen (Advil, Motrin IB, others) to reduce the inflammation.īlood clot. This is usually mild but may cause swelling, warmth and discomfort around the injection site. Other complications are less common but may require treatment. Some side effects can take months or even years to disappear completely. These side effects usually go away within a few days to several weeks.