I actually found that nothing helped and spent 6 months with my head down the loo - even thinking about food had this effect. I tried a spoonful of crushed ice at a time, but still the same effect. I ended up at the local clinic a couple of times after the flying doctor cent me there for a drip - it was mid summer in the outback. The other times I didn't bother to go - finding the veins was painful. However, looking on the bright side I lost so much weight that by the time I was ready for radio and my herceptin (doesn't make you sick at all), I was two sizes smaller! In hindsight this was a great positive of the whole thing!