1. I believe it's CLEAR liquids for the first 2 weeks AFTER surgery. Clamato and/or tomato juice is a no-no.
As a side note, you may find it gives you heart burn. You'll want to avoid anything spicy after surgery, for at least a few weeks until you figure out what you can get away with. I know I had terrible heart burn, and was very sensitive to a lot post surgery.
It also doesn't have much in the way of nutritional value, so I'm aim for something a bit higher in protein, to help with your energy levels.
2. Itchy incision = it's healing. It's just fine to use Vit E on it. That will help with the scar, as well.
3. I had BAD BAD heart burn & gas. I found GasX strips worked, and ended up taking something for the horrible/severe heart burn, which really only lasted a few weeks.
To help with gas, keep movin' - you'll find walking helps a lot.
5. Powder fibre supp to clear liquid.
Hope this helps!