I have gastritis, I went to the doctor with endoscopy results due to HP bacteria, took a prescription prescribed by the doctor, including the following types: Hagimox (500mg), 60 tablets; Skasen 500mg (500mg), 20 tablets; YSPUripax 200mg, 30 tablets; Grandaxin 50mg (50mg), 30 tablets; Dogastrol 40mg, 30 tablets; Gellux 1g/15g, 30 packs. So the doctor asked me how to treat gastritis caused by HP bacteria?