The aromatherapy is not reasonable is harmful, specifically the following points: 1, easy to induce human-related diseases, such as aromatherapy can induce the patient’s rhinitis, especially allergic rhinitis, and for heart disease has a very large side effect, can lead to arrhythmia, induced heart failure. For some patients, aromatherapy can lead to spasms of the respiratory tract, and induce the appearance of asthma, and even for the patient’s blood pressure has a certain impact. 2, aromatherapy can lead to air circulation, especially when the door is closed, closed windows, aromatherapy can lead to the body because of lack of oxygen, and dizziness, dizziness and other malignant symptoms. 3, aromatherapy can lead to serious allergies in the human body, which is very rare, but should be prevented.