It is said that prevention is better than cure because:
1)some chronic diseases cant be cured once attacked
2)the signs  of some diseases will last forever for example ,the scars left by the chicken pox will  last forever.
3)diseases may get get transferred from one person to another.
4 )and some diseases cant be cured forever and in turn they cause some disabilities to the person suffering from it.ezample,stroke, congestive heart failure.