Nebulization for cough and cold is useful. Cold and cough are mainly caused by the invasion of viruses, bacteria, mycoplasma, chlamydia, rickettsia and other pathogens in the body, and the occurrence of inflammatory reactions that cause congestion and edema in the upper respiratory tract mucosa. At this time, the agent can be converted into mist by nebulizer, and then inhaled into the mucous membrane of the upper respiratory tract or even the bronchi through the body’s respiratory movement to achieve the purpose of relieving symptoms and treating the disease. For example, you can choose budesonide nebulizer inhalation, which can reduce its congestion and edema, and is very beneficial for relieving cough.