Talk to Ent Specialist on White Tongue And Gums Issues

before a week due to dehydration and eating less I had constipation and burning stomach sensation and vomiting then I quit fry item in ifatri and take nexum 20 once a day and after iftari 2 table spoon gaviscon syrup then my mouth become dry and blister appear and irritation in lower front behind teeth and also with touching tongue on that part then diarrhea watery stool again nd again for 1 day I used ispagol and ors all set but m using nexra tooth paste right now what should I use or do I'll attach pics