Sclerotherapy is commonly used for treating spider veins and small varicose veins. It involves the injection of a FDA-approved sclerosing solution (a mixture of saline and Sotradecol®), which causes chemical endovenous ablation of the vein, which collapses and diminishes in appearance. Sclerotherapy can be ultrasound guided, often called echoschlerotherapy, or it can be performed using a transdermal illuminating light, called a Venoscope®. In Light Guided Sclerotherapy, a high-intensity, LED-lit hand piece allows the practitioner to pinpoint and anchor peripheral veins for direct and accurate injecting of the sclerosing solution. Compression hose are highly recommended post-treatment.