Good idea that you want to fast. Please make sure that I you have good nutritive reserves before you commence your fast. In order to tondo that eat raw organic plant based foods for a month. Also include apple cider vinegar regularly in your diet to tackle H-pylori. Also Colloidal Silver
Drugs are never an answer for fixing our health conditions, anyway. Our health issues start with wrong foods and end with right foods. Of course, there are other issues that affect our health, environmental and thought toxicity.