Bottle for breastfed baby

Excuse me! Why do you need a bottle when you are breastfeeding a baby. It doesn't make any sense. If you are still breast feeding the baby then you won't have this problem at all. But if you have switched from breast feeding to bottle feeding then this issue arises. All you have to do is to clean the bottle once in two days in warm, boiled water. Make sure that you use boiled water as tap water itself contains lots of parasites and germs. Avoid using too much soap and even if you do make sure you rinse it out well.