Whether oxygen can be inhaled frequently depends on the patient’s own physical quality and condition to clarify. For normal people, it is not recommended to inhale oxygen frequently, because if you inhale too much oxygen, too often or even inhale too much oxygen pressure, it will produce too many oxygen free radicals in your body, which will kill some of your own cells and interfere with the metabolism and function of your own normal tissues and organs, and even induce the appearance of cancer, which can cause nausea, vomiting, abdominal pain, diarrhea, dizziness and even convulsions. For chronic diseases, such as chronic obstructive pulmonary emphysema, chronic pulmonary heart disease and other such diseases, you can choose continuous low-flow oxygen, which is conducive to the improvement of cardiopulmonary function, and can play a certain role in relieving wheezing, shortness of breath and other hypoxic conditions.