Sclerotherapy is a minimally invasive medical procedure used to treat spider and varicose veins. It involves injecting a solution directly into the affected veins, causing them to collapse and eventually fade from view.

The injected solution irritates the lining of the vein, causing it to swell and stick together. Over time, the treated vein is absorbed by the body and fades away, while blood is naturally rerouted through healthier veins.

Most patients experience minimal discomfort during the procedure, often described as a mild burning or tingling sensation at the injection site. Any discomfort typically subsides quickly, and numbing cream may be applied beforehand to enhance comfort.

Results vary depending on the size and severity of the treated veins, but many patients notice improvement within a few weeks to a month after treatment. Multiple sessions may be necessary for optimal results.

Side effects are typically mild and temporary, including bruising, swelling, or slight discoloration at the injection site. Most patients can resume normal activities immediately after treatment, although strenuous exercise and prolonged sun exposure should be avoided for a short period following the procedure.