The lime leaf is often used as a seasoning to provide a fresh citrus overtone in a variety of food dishes especially in Cambodian, Indonesian and Thai cooking for soups and curries. The leaves are also used to produce beverages such as tea and wine.
Most commonly, fresh, whole leaves are added to flavor dishes like curries and soups, similar to how Bay leaves are used. But they can also be sliced very thinly and added raw to salads and other fresh dishes. There are also dried leaves in whole or powdered forms.
Lime Leaf Tea is great for gastritis, gastric ulcers, gas, bloating, nausea, vomiting, it's soothing, relaxing, and helps with stress and lowers blood pressure.
If you plan to use the leaves soon, you can simply pop them in a bag or container and store them in the crisper draw in the fridge. Stored in this way, they will stay good for up to one week. But if don't plan to use the leaves right away, they also freeze very well.