The section of clotted vein will go through inflammation resulting in a warm, distressing swelling felt together the duration with the vein. Thrombophlebitis typically recovers with just anti-inflammatory medications. In contrast to Laser and Radiofrequency which has been in use for > a decade, Venaseal is a fairly new procedure; https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-a-comprehensive-guide/