Should these veins be drained post sclerotherapy treatment?

Its quite possible you will need evacuation of any clots in your superficial veins. Continue to use compression. I recommend Venasmart compression stockings for my patients. Best, Dr. KaramanoukianLos Angeles

Thank you for your question in regards to sclerotherapy. Lumps and pigmented areas are common after sclerotherapy and typically will resolve on their own. Although continuing to wear your compression helps, if tenderness is present, it would be best to follow up with your provider. To be sure, see two or more board-certified providers in your area for a complete evaluation to make sure you are a good candidate and that it is safe for you to have treatment. I hope this helps.

Post-sclerotherapy, one may develop microthrombi within the vessels which feel firm and lumpy.  These are not serious thrombi.  Wearing your compression stocking is helpful and this should resolve over time.  Good luck.

Post sclerotherapy follow up is necessary and sometimes drainage of retained coagulum is key.Recommend topical Sclerovase and Scleroquin plus and drainage of retained coaguum.H Karamanoukian MD FACScertified vein specialist from ABVLM

Hard areas are very common following sclerotherapy treatments and the larger the vein treated the greater the chance of this happening.  I usually drain these areas anywhere from 2 to 6 weeks post treatment so you should definitely  have these evacuated.

"lumps and nodes" of trapped blood are very often happen after sclerotherapy. It is matter of time and those always resolve. However, if those bother you (tender, pigmentaion, etc) you can ask vein specialist to evacuate using a needle.