Used for digestive disorders including gas, indigestion, nausea, diarrhea, upper gastrointestinal tract spasms, irritable bowel syndrome (IBS), bile duct and gallbladder swelling (inflammation), and gallstones. It is also used for sore throat, colds, headaches, toothaches, cramps, cancer and inflammation of respiratory tract. Spearmint is applied directly to the skin for swelling inside the mouth, arthritis, local muscle and nerve pain, and skin conditions including pruritus and urticaria. In foods and beverages, spearmint is used as a flavoring agent.