I've heard liquid chlorophyll can help w/ bad breath and even b.o.? Which is the best brand to get (or are they all the same?)? And how do I go about using it for the bad breath and b.o.? Do I just follow the instructions on the bottle? Any advice is appreciated. Thanks!
I use World Organic Liquid Chlorophyll, they have it with and without a mint flavor. Yes just follow the instructions on the bottle, you can also just use it as a mouth rinse to strengthen your gums if needed. It taste pretty nasty, and be careful because it is really green and it can stain clothing. (It cost between $4-$8)

is there any home remedy to cure bad breath?

rinse your mouth with hydrogen peroxide for about 10 minutes,three times a day.
You might need to see a doctor,you may have a stomach problem.
See a dentist too,cavities or rotton teeth can cause it too.