Night jasmine oil is used in aromatherapy to relieve stress and anxiety. It helps by increasing the serotonin levels in the brain and regulating mood. Boil some leaves in water and have them once a day to reduce any kind of pain and swelling in the body.Night jasmine oil is used in aromatherapy to relieve stress and anxiety. It helps by increasing the serotonin levels in the brain and regulating mood. Boil some leaves in water and have them once a day to reduce any kind of pain and swelling in the body.