Can rhinitis cause coughing and excessive phlegm?

Nov 27, 2025 Source: Cainiu Health
Dr. Lu Cheng
Introduction
In general, whether acute pharyngitis is contagious depends on its cause. Cases caused by viral infections are usually contagious, while those resulting from bacterial infections or physical irritation are generally not. It is important to maintain good oral hygiene, rinse the mouth with warm water after meals, eat a light diet, avoid spicy and irritating foods, and maintain regular作息 (daily routines) to boost immunity.

Generally, whether acute pharyngitis is contagious depends on its cause. Cases caused by viral infections are usually contagious, while those resulting from bacterial infections or physical irritants are typically non-contagious. The details are as follows:

Acute pharyngitis caused by viruses such as influenza virus or rhinovirus can spread through respiratory droplets or close contact. Patients often experience symptoms including sore throat, dry throat, fever, and runny nose. In such cases, protective measures should be taken—avoid sharing eating utensils with others, wear a mask when going out, and minimize the risk of transmitting the infection.

Acute pharyngitis caused by bacterial infections, excessive voice use, or irritation from smoking and alcohol is generally not contagious. Symptoms in these cases are mostly localized to the throat, manifesting as sore throat and phlegm production, sometimes accompanied by a burning sensation. Local discomfort can be relieved by using throat lozenges, drinking plenty of water, and similar methods.

In daily life, maintain good oral hygiene by rinsing the mouth with warm water after meals. Eat a light diet and avoid spicy or irritating foods. Maintain regular sleep patterns to boost immunity. Promptly adjust lifestyle habits when symptoms appear to promote recovery of the throat mucosa.

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