Nebulization refers to the use of drugs by means of nebulizer, forming a water mist inhaled into the lungs to facilitate the absorption and utilization of drugs as a form of treatment. And nebulization has the following side effects: First, the concentration of drugs used in nebulized antibiotics, if it does not reach an effective concentration, it is easy to induce bacterial resistance, resulting in the need to increase the dose when the drug is used again. Second, nebulized inhalation of drugs in the body is diffuse, easily lead to non-bacterial infection area of drug deposition, and because the drug into the body is diffuse, so the need to use the drug is also a relatively large dose. Third, some of the drugs produced by nebulization are directly discharged to the outside world, and there is a certain amount of non-pollution to the outside environment. Fourth, during nebulization, because the inhaled dose of the drug is too large, it may enter the circulation to metabolize and may have side effects on the kidneys.