Basically the medicines you have been prescribed are antibiotics for Helicobacter Pylori
eradication (dont know what "caranozol" - hope this is some PPI). It is advisable to use PPI for 30 days, and after that repeat gastroduodenoscopy to see if there is good response for treatment.
You might need to use PPI for a long time, longer than 30 days. Gelusil
might be to soft for your symptoms. You should also eliminate from diet any products which do increase acid secretion like coffee, juices, soft drinks, chocolate etc. It is advisable to rise head a little bit when sleeping and do not eat 2 hours before sleeping.
Hope this will help