You can stand up and walk around immediately after the procedure. It’s important to move your legs to prevent the formation of blood clots and maximize treatment results. Walking for 15 to 20 minutes after sclerotherapy may be beneficial to improving the sclerosis of the veins. You may resume normal activity. But, for 48 hours avoid: Hot baths, Whirpool or Saunas Very Strenous activity Long plane flights Sunbathing