Getting up in the morning with a lot of phlegm may be caused by respiratory diseases, such as allergic rhinitis, bronchitis, etc. For treatment, if it is caused by allergy, anti-allergy treatment should be given, if it is caused by microbial infection, anti-infection treatment should be given, in addition, phlegm and other symptomatic treatments can be carried out. 1. Allergic rhinitis: patients may have symptoms such as coughing and runny nose, and when they sleep at night, the nasal mucus flows out through the posterior nostrils, so when they get up in the morning, they find a lot of phlegm in the throat. Treatment should remove the allergens, and anti-allergy treatment, can use antihistamines, such as ibastine, loratadine, etc.; can also use anti-leukotriene drugs, such as montelukast, etc.; can also use inhalation of nasal glucocorticoid preparations, such as budesonide and so on. 2. Bronchitis: Due to the inflammation of the bronchial mucosa, a large amount of sputum can also be found in the throat when waking up in the morning. For treatment, if it is caused by bacterial infection, antibiotics such as penicillin can be used for treatment, in addition to phlegm-modifying drugs, such as aminoglutethimide, which can be used for symptomatic treatment. In addition to the diseases listed above, other diseases may also cause excessive phlegm in the morning. If the symptoms continue to be unrelieved, please go to the hospital as soon as possible to find out the cause of the disease, so as not to delay the condition.