Spearmint is an herb. The leaves and oil are used to make remedy. Spearmint is used for digestive issues along with gasoline, indigestion, nausea, diarrhea, higher gastrointestinal tract spasms, irritable bowel syndrome (IBS), bile duct and gallbladder swelling (irritation), and gallstones spearmint to help alleviate symptoms of nausea, indigestion, fuel, headache, toothache, cramps, and sore throat. It is likewise carried out topically, to the skin, to assist reduce swelling due to nerve or muscle ache.