Your wife is suffering from hyperacidity.
Mix together equal parts of powdered fennel, licorice root, basil leaves, and coriander seeds. Have ½ teaspoon of this mixture with ½ teaspoon of powdered rock candy (or unrefined
sugar) 15 minutes before lunch and dinner.
Make a powdered mixture of equal parts of rock candy (or unrefined sugar), fennel, and green cardamom. Whenever you feel heartburn, mix 1 teaspoon of the mixture in a glass of cold milk and drink.
Chew a small piece of jaggery after lunch and dinner. Repeat until acidity subsides.