Foods & Acne / Water & Acne

I find everytime I eat certain foods I always breakout.
For me the foods are...

Tomatoes or Tomato soup (and I love tomato soup :-( )
Crisps

I'm planning on getting an allergie test done soon (once the snow and ice goes)
Everyone should prbably get one of these done.

I think everyone now knows that it is essential to drink a lot of water.
But the other day I stumbled across an old programme that had a leading dermatologist that looks after a lot of Hollywood stars( I will try & find his name later) and basically he stated that it is best to eat your water because when we drink water our vital organs take what they need then the rest well goes down the toilet.
While when we eat foods with a high water content we absorb the water and nutrients. 

Oh by the way I am not a doctor or  a beautician so it is best to go to the doctor before changing any part of your diet and it is important to drink water & eat it.