Boil for 5 minutes 250cl of water with 2-3 lemon peels and bay leaf. Drink this tea hot with sugar. It is a good digestive.
Let dry some leaves of lemons and store them in a glass jar. Boil 2 tablespoons of dried leaves for 5 minutes in a cup of water; strain the liquid and add a teaspoon of honey. It's a great calming before sleeping.
Cut 2 lemons from the Amalfi coast and boil them in 1 liter of water for 30 minutes. Strain the liquid and drink hot during the day. It's perfect for nausea and indigestion.