What causes dry cough, no phlegm and itchy throat?

Dry cough is a dry cough and a common clinical symptom. Many people are confused about what causes dry cough without sputum and itchy throat. Generally, the cause of this situation is relatively complicated. Excluding the possibility of cold, it is also related to chronic pharyngitis.

1. Chronic pharyngitis

This may be a manifestation of chronic pharyngitis, which refers to diffuse pharyngeal lesions caused by chronic infection. It mostly occurs in adults and is often accompanied by other upper respiratory tract diseases. Chronic pharyngitis is often caused by repeated attacks of acute pharyngitis, rhinitis, and sinusitis pus irritating the pharynx, or nasal congestion and mouth breathing. Traditional Chinese medicine calls it virtual fire throat congestion, and the cause is often related to yin deficiency. The weather is dry in autumn and winter, and catching a cold can easily induce discomfort in the throat.

2. Upper respiratory tract lesions adjacent to the pharynx

For example, chronic inflammation of the nasal cavity, sinuses, and nasopharynx may irritate the pharyngeal mucosa due to the reflux of inflammatory secretions through the posterior nasal cavity to the pharynx; diseases such as chronic rhinitis, deviated nasal septum, chronic sinusitis, adenoids hypertrophy, snoring, or space-occupying lesions in the nasal cavity, sinuses, and nasopharynx affect nasal ventilation, causing long-term mouth breathing, causing long-term excessive dryness of the pharyngeal mucosa and leading to chronic pharyngitis; chronic inflammation of chronic tonsillitis can directly spread to the posterior pharyngeal wall, causing chronic pharyngitis; if oral inflammation is not controlled in time, it can also lead to chronic pharyngitis as the inflammation spreads.

3. Allergic factors

Inhaled allergens (including seasonal and perennial allergens), medications, chemical irritants in the workplace, and food allergens can all cause allergic pharyngitis.

4. Changes in climate and regional environment

Changes in temperature and humidity, poor air quality, stimulation from tobacco and alcohol, spicy and irritating foods, dust, harmful gases and radioactive exposure are also causes of chronic pharyngitis.