My mother is type 2 diabetic patient suffering from helico pyloric infection . she has took medicine NEXUM 40 mg bd ,azothromycin 500 mg bd . ulsanic for 6 weeks. As she stoped medication she started heart burn , loss of appitide , heaviness in stomch , black stool , weakness . Doctor suggested Zantac 150mg bd , Risek 40 mg od , Motilium tid . gaviscon syrup but there is no improvement . Please guide me what to do now