Ginger. To improve digestion and stop digestive disorders, you need to add ginger to your diet. Ginger stimulates digestive juices, helping to properly digest food. Ginger has carminative, anti-inflammatory, antiviral, and antibacterial properties that help prevent indigestion and other digestive disorders, in turn reducing stomach ache. To improve digestion, you can chew a small piece of ginger after eating. You can also drink 2 to 3 cups of ginger tea per day. To make the tea, bring 1 cup of water to a boil and add 1 teaspoon of freshly sliced or grated ginger root. Let it simmer for 5 to 8 minutes, remove from heat and strain out the ginger. Use honey to sweeten it, and sip your tea slowly. Drink ginger tea two or three times per day to relieve stomach ache and enhance digestion.