Aromatherapy Functions in Chinese Medicine Frees the Spirit; Normalizes the Hun/Perspective; Instills a Positive Attitude: pessimism, unhappiness. Give a bottle of Orange oil to someone when you want them to feel happy. Moves and Rectifies Qi; Rectifies Liver Qi; Quells the Liver: headaches, tension, frustration, moodiness and irritability, insomnia. Fortifies the Stomach and Spleen; Improves Digestion of Fats: abdominal distention and pain, poor appetite, indigestion, flatulence, nausea, vomiting, constipation, irritable bowel.