Lemongrass is commonly used to flavor teas and soups. In Indonesia, where the herb is known as sereh, lemongrass is used to season roasted chicken. In the Philippine province of Cebu, lemongrass is a key flavoring in lechón, a national dish that consists of a whole roasted pig. cosmetic -Use to produce soaps, lotions and other topical preparations. culinary Add to soups, rice dishes and braised foods. aromatic Use to make tinctures and infusions for use in perfumery. industrial Lemongrass is widely used on the food, cosmetic, spa and fragrance industries. safety Citronellol in lemongrass may cause allergic skin reactions in some people.