Ajwain is one of the best herbal drugs for gas, constipation, and digestion. Its refined water is ideal for the above problems and also improves appetite. Ajwain seeds have anti-hyperacidity properties. A patient with acid or hyperacidity may eat ajwain and warm water + salt in the morning or after a meal. When taken for 10-15 days, it shows definitely good results. Read Acidity Control and Prevention with Herbal methods and Carom Seeds Benefits. Ajwain provides instant relief from acid and digestion. The enzymes in ajwain facilitate the secretion of gastric juices, thus improving digestive functions. Ajwain if taken with a small amount of salt and warm water solves digestive problems.