Scented oil has the effect of ventilating the qi and regulating the lungs, which not only reduces the symptoms of coughing, but also reduces the damage to the lungs caused by a variety of substances (e.g., tobacco and alcohol). Eggs can enter the spleen meridian and stomach meridian. According to Chinese medicine, the spleen meridian and the lung meridian belong to the Taiyin meridian, so eggs also have the effect of tonifying the lungs and nourishing blood. Combining these two ingredients can receive the effect of clearing heat and detoxification, moisturizing the voice and pharynx, and has a certain effect on cough.