The recurrence of symptoms suggest that you might have stopped your medications before the pathology caused by food poisoning
got corrected completely.
So....you can take Norflox
Also you can add Omeprazole
20 mg twice a day half an hour before meals.
If there is pain in abdomen, Cyclopam
tablet can be used twice a day.
Make sure you are taking simple, soft & non-spicy food & maintaining adequate hydration (drink lots of fluid...avoid carbonated drinks & alcohol)
Wishing you a speedy recovery.
Thanks and take care.