What do you mean by "treatment"? Varicose veins is an indication that there are problems with collagen (protein) production , increase estrogen which promotes unusual cell growth. If I had varicose veins I would improve my collagen production. You can read about it on my blog. I would also consider varicose veins as a sign of thickened blood which leads to blood clotting.
All of this means that you must clean up your diet, supplement correctly. I would be very careful about taking prescribed medications all of which have serious side effects.