For minor treatments for spider veins or smaller varicose veins.
There is no down time required. Some patients can have some mild aching the next day, but are generally very mobile and get away without taking any pain relief.
For bigger treatments, that may include large varicose veins and a series of procedures, it may be advisable to take the next day off work. Especially if your work involves sitting or standing for long periods of time.
Pain relief generally for this is paracetamol or ibuprofen or even nothing at all.