Nebulized medications are used for the treatment of respiratory diseases, and budesonide is commonly used and is not recommended for long-term use. Budesonide is a glucocorticoid that is administered by nebulized inhalation to relieve inflammatory reactions, allergic reactions, hyperreactive states, and airway inflammation caused by pathogenic infections in the airways, such as bronchitis, pneumonia, and asthma. If budesonide nebulization is used for a long time, it is likely to cause chronic inflammation in the airways, such as the pharynx and nasal cavity, leading to secondary infections of other pathogens, such as fungal infections, so it is recommended to use budesonide nebulization for a limited period of time according to the condition and not for a long time. You can gargle with saline after 5 minutes of nebulization to reduce the residue of the drug to prevent side effects that can lead to fungal multiplication.