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Go for investigations to rule out present condition.
You have symptoms like dyspepsia
Recurrent infection of salmonella
requires again complete course of antibiotic under guidance of your doctor.
USG abdomen is advisable before start any treatment.
Otherwise start rebeprazole with domperidone
Enzyme preparations,lactic acid bacillus with zinc will be helpful.
Eat more nutritious,high fiber diet.
Drink more water and other liquids like coconut water,lemon water,butter milk,fruit juices,vegetable soup.
Ask your doctor about vaccine
to prevent recurrence.