What are the functions and benefits of boiling Houttuynia cordata?
Boiling Houttuynia cordata (fishy-smelling herb) in water generally has antibacterial and anti-inflammatory effects, clears heat and detoxifies the body, benefits the throat and reduces swelling, promotes urination and alleviates urinary discomfort, and improves cough caused by excessive lung heat. Detailed explanations are as follows:

1. Antibacterial and Anti-inflammatory: Boiled Houttuynia cordata contains multiple active ingredients that inhibit common pathogenic bacteria such as Staphylococcus aureus and Escherichia coli. After consumption, these components exert antibacterial effects in the body, reducing inflammation caused by bacterial infections and assisting in the treatment of infectious diseases affecting the respiratory tract, intestines, and other areas.
2. Clears Heat and Detoxifies: Houttuynia cordata is cool in nature, and boiling it in water effectively removes internal heat and toxic pathogens. It helps regulate the body's internal environment, alleviating discomfort caused by excessive internal heat, such as flushed face, red eyes, swollen gums, and dry throat, thereby restoring the body's yin-yang balance.
3. Benefits the Throat and Reduces Swelling: Boiled Houttuynia cordata significantly improves symptoms such as sore throat, dryness, and itching. It reduces congestion and swelling of the throat mucosa, suppresses local inflammatory responses, alleviates pain and foreign body sensations, and promotes the recovery of normal physiological function in the throat.
4. Promotes Urination and Alleviates Urinary Discomfort: Drinking boiled Houttuynia cordata water promotes urine production and excretion, achieving a diuretic effect. By increasing urine output and flushing the urinary tract, it helps relieve symptoms of frequent urination, urgency, and pain caused by urinary tract infections, supporting urinary system health.
5. Improves Cough Due to Excess Lung Heat: For coughs caused by excessive lung heat, accompanied by symptoms such as yellow phlegm, dry throat, and thirst, boiled Houttuynia cordata can help clear excessive dry heat from the lungs, reduce respiratory inflammation, inhibit phlegm production, and promote its expulsion, thereby alleviating cough symptoms.
When consuming Houttuynia cordata water, strictly control the amount consumed. Special populations such as children, pregnant women, and the elderly or frail should consume it only under a doctor's guidance. If symptoms do not improve or worsen after consumption, seek medical attention promptly.