For larger varicose veins, foam sclerotherapy can be more effective than liquid by improving vein wall contact

https://alexisjepf036.almoheet-travel.com/how-long-do-vein-treatments-last-sclerotherapy-longevity-explained

For larger varicose veins, foam sclerotherapy can be more effective than liquid by improving vein wall contact, requiring fewer injections and delivering better closure rates in select cases.