I got a result of 1.0% with 23 whole dry days. Previous to my abstinence I was drinking a bottle of wine a day just about everyday, about 8-10 units a day. I too took milk thistle and a lot of other supplements (artichoke, turmeric and ginger). There's no scientific evidence that any of these work but they certainly can't hurt. I also upped my water intake considerably. All I would say is to be careful with very high water consumption..it is possible to OD on water and don't waste your money on vitamin C tablets. Ascorbic acid is water soluble and will just be flushed out of your body by all that water. Eat a balanced diet with plenty of fruit and veg and you'll get all the vitamin C that you need along with all the other nutrients found in your 5 or 7 or 9 a day.
Just stay off the booze until your medical and I'm sure you'll be fine.