What kind of water should one drink to relieve cough and expel phlegm?
Generally, for relieving cough and expelling phlegm, you can choose to drink rock sugar and pear water, kumquat apple water, white radish and pear water, passion fruit honey water, lemon water, etc. Detailed explanations are as follows:

1. Rock Sugar and Pear Water
Pears have the effects of clearing heat and detoxifying, moistening the lungs, and relieving cough, while rock sugar helps clear internal heat. Together, they can quickly relieve coughing and aid in expelling phlegm.
2. Kumquat Apple Water
Kumquats are rich in vitamin C and fiber. When cooked with apples, this combination not only offers a fragrant and sweet flavor but also effectively relieves coughing and helps remove phlegm and dampness.
3. White Radish and Pear Water
Both white radish and pear have the functions of resolving phlegm, lowering qi, relieving cough, and alleviating asthma. White radish also enhances immunity. When combined with pears in a decoction, the taste and efficacy are improved.
4. Passion Fruit Honey Water
Passion fruit and honey both have benefits such as moistening the lungs, relieving cough, and promoting bowel movements. Passion fruit honey water is particularly effective in relieving cough caused by upper respiratory infections or pharyngitis.
5. Lemon Water
Lemon helps stimulate saliva production, quench thirst, moisten the lungs, and resolve phlegm. It is rich in vitamin C and minerals, making it highly effective for treating cough caused by heat-related illnesses affecting bodily fluids.
In daily life, maintaining humid indoor air is recommended. Using a humidifier or placing a water basin indoors can help maintain air moisture and alleviate symptoms. Drinking an adequate amount of water daily also helps moisten the airways, thin mucus, and facilitate its expulsion.