Constant phlegm and mucus in the throat: common causes and what can help
Constant mucus in your throat is not necessarily a sign of excess mucus being produced in your lungs. Often, the sensation comes from mucus draining from the nose or irritation of the throat.
Common causes
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Postnasal drip: Allergies, rhinitis, or sinus problems can cause mucus to drain down the back of the throat.
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Acid reflux/GERD: Reflux can irritate the throat and cause throat clearing, coughing, hoarseness, or a feeling of mucus or a lump in the throat.
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Asthma: Asthma can cause coughing, wheezing, breathing difficulty, and increased mucus production.
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Respiratory infections: Colds, flu, bronchitis, and other infections can temporarily increase mucus.
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Smoking or other irritants: Tobacco smoke, dust, chemicals, and air pollution can irritate the airways and increase coughing and mucus.
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Dehydration or dry air: These can make existing mucus feel thicker and harder to clear.
What you can try
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Drink fluids regularly to help keep secretions thinner.
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If nasal drainage is the problem, saline nasal spray or rinse may help.
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Avoid smoking and secondhand smoke.
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If reflux seems likely, avoid large meals shortly before lying down and identify foods or drinks that trigger your symptoms.
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A clean cool-mist humidifier can help if your environment is very dry.
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Warm liquids and honey can soothe an irritated throat; honey isn’t suitable for children under 1 year.
Don’t assume that green or yellow mucus automatically means you need antibiotics
