Vericose Veins and Herbs

Over the weekend, I received an email wanting help with vericose veins.  I don't have any good research on the subject, but just read a post by a gal that I do respect and wanted to run this by you and see if you can give me advise for my buddy:

Well I know how to help so they don't get worse. Make sure you are never constipated.
.The herb horse chestnut is one of the most widely used natural treatments for varicose veins.

Butcher's broom is another, it contains ruscogenins,believed to strengthen collagen in blood vessel walls and improve circulation. This is thought to tighten weak, stretched vessels such as those associated with varicose veins.

Give me your take on these and any other nfo you got on CURING vericose veins.  This person is holistic.