Does anyone know the BEST cure to bad breath?!

Does anyone know the BEST cure to bad breath?

I am experiencing dry mouth, and especially in the morning i feel i have this bad odour. Could anyone please advise which is the best product, cause i do have paredontial desease, and it is connected to that too, but i see many offers on the internet and have found "the bad breath book" that costs $29,90 and is based on natural remedies that you can use from your home, stating that these big companies sell xepensive and nonefficient products. I have researched the causes and somtimes going to the dentist is not enough!
So who do i believe , i cannot believe those testimonials out there, so i need some of your advise and personal experience please.

Bad breath is caused by bacteria and the sulfur produced when the bacteria breed, basically. Most common reason is not brushing your tongue well enough. People w/ perio disease have more bacteria than others. Rinsing w/ hydrogen peroxide at night after brushing and flossing will help cut out some of the extra bacteria left in pockets. Swish, spit, do not rinse or eat or drink for 30 minutes. It will bubble down into the bottom of those gingival pockets and kill what you miss with brushing and flossing. It will also help with your perio disease. If you take lots of medications this can cause dry mouth and increase bad breath because the saliva is not there to wash bacteria away. Trying over the counter try mouth remedies ( rinses, toothpastes, candies) or sucking on sugar free candies or chewing sugar free gum can help increase saliva.