Why does my throat always have white phlegm that I can't stop spitting out, and what should I do?
Generally speaking, the term "throat" refers to the pharynx. If there is persistently excessive white phlegm in the throat that seems impossible to completely spit out, it may be related to improper diet, dry air, allergic rhinitis, acute pharyngitis, bronchitis, or other factors. It is recommended to seek timely medical advice and undergo general treatment or medication under the guidance of a physician. Specific explanations are as follows:

1. Improper Diet
High-sugar foods such as cakes and candies may promote dampness in the body, and frequent consumption can lead to excessive phlegm formation in the throat. It is recommended to adjust dietary habits by adopting a low-sugar diet, consuming more fresh vegetables and fruits, and keeping the throat moistened.
2. Dry Air
Excessively dry indoor air can cause evaporation of moisture from the respiratory tract, making phlegm more viscous and difficult to expel. It is recommended to use a humidifier or place a bowl of water indoors to maintain indoor humidity within an appropriate range.
3. Allergic Rhinitis
Allergic rhinitis is usually triggered by allergens such as pollen or pet dander. Contact with allergens can cause increased nasal secretions, which may flow backward into the throat, irritating it and causing the production of white phlegm. This condition is generally accompanied by symptoms such as runny nose, sneezing, and nasal itching. Treatment may involve the use of medications such as azelastine fluticasone nasal spray, budesonide nasal spray, or triamcinolone acetonide cream, as directed by a physician.
4. Acute Pharyngitis
Acute pharyngitis is usually caused by viral or bacterial infection. The acute inflammation stimulates the pharyngeal mucosa, causing mucosal congestion, edema, and increased exudation. It is commonly accompanied by symptoms such as headache, fever, and sore throat. Medications such as Shufeng Jiedu Capsules, Qinghou Liyan Granules, and Jinsang Kaiyin Pills may be used under medical guidance for treatment.
5. Bronchitis
Bronchitis is usually caused by pathogens such as viruses or bacteria invading the bronchi. Inflammatory factors lead to local vasodilation and exudation, resulting in increased phlegm production. Symptoms such as coughing, chills, and chest tightness may also occur. Treatment may include medications such as levofloxacin hydrochloride tablets, cefixime capsules, or compound methoxyphenamine capsules, as recommended by a physician.
In daily life, it is important to maintain a balanced diet, consume more fresh vegetables and fruits, and avoid excessive intake of high-sugar, greasy, and spicy irritating foods, which is beneficial for maintaining overall health.