How does the oesophagus cancer prevent°from

Aim at oesophagus before the cancer pathological changes and suspicious cause of disease adopt some prevention measure:
1, the improvement is used water condition and reduced the nitrate of the drinking water and the content of the second nitrate.
2, strengthen a food preservation, often bask a food and keep mildewed from going to An, don't eat the food that the mildew changes in character.
3, promote not to eat sour pickled cabbage, eat fresh vegetables fruit more.
4, quit smoking or don't drink violent wine.
5, actively develop census tumor, attain to early diagnose and early cure.
6, the pathological changes stops a treatment before the cancer, if aim at the condition usage vitamin C, E, B and increase usually, the ester of Wei An, winter-worm, summer-herb, six yellow pill, tea-leaf, and selenium chemical element...etc..