Peppermint For Nausea And Upset Stomach Consuming a cup of peppermint tea gives calming effects and relaxes the stomach muscle, which were the nauseating feeling comes from. It is one of the famously known and common teas we can drink if felt nauseous or have morning sickness. For this soothing tea, ✔ we simply need to boil 2 cups of water. ✔ Add 10 to 20 crushed fresh mint leaves. ✔ Turn off the heat, and let steep for 10 to 15 minutes or until desired strength is achieved. ✔ Strain leaves (or chew them if you don’t mind the texture and they are small). ✔ Serve warm with a drizzle of honey and squeeze of lemon.