Do treated varicose veins stay away for good? We would need to perform a duplex ultrasound scan of your legs to determine exactly what treatment would be suitable. If you have faulty valves causing your varicose veins then it’s likely the most suitable treatment for you would be EVLA (laser treatment). EVLA will close treated veins in 99% of patients on the first treatment session. We cannot guarantee that any closed veins will not reopen at a later date. However, this does occur in only a small number of patients. The risk of developing reflux in treated veins is about 1-2% per year. Click here to watch Dr Thoraya Ammar explain if varicose veins come back after laser treatment.