iCliniq Logo
HomeHealth articlesPulmonology (Asthma Doctors)phlegm

How to Get Rid of Phlegm?

Verified data
0

5 min read

Share

Outline

Phlegm is a mucus produced by the respiratory system to trap irritants and germs. Read the article to know what triggers it and ways to prevent it.

Written byHemamalini. R

Medically reviewed byDr. Shubadeep Debabrata Sinha

Published At February 7, 2024
Reviewed AtOctober 17, 2025

What Is Phlegm?

Phlegm is a kind of mucus that forms in the lungs and throat. It has a slightly thicker consistency than the mucus generated by other body parts. It traps irritants, bacteria, and viruses, acting as a protective substance for the body; however, excessive amounts can be challenging to manage over time.

It is also known as sputum. Several people suffer from chronic phlegm concerns, including coughing up phlegm, persistent throat phlegm, and phlegm that remains in the chest for months. Learning about the reasons and treatments for phlegm will help you cure it more effectively.

Causes of Phlegm

Numerous conditions cause the production of phlegm in the throat and lungs, which include -

  • Lung conditions like -

    • Chronic bronchitis (infection of the airway tubes).

    • Pneumonia (lung infection), COPD (chronic obstructive pulmonary disease - a group of conditions preventing airflow into the lungs, causing breathing issues).

    • Asthma (a long-lasting condition in which the airways shrink and swell, generating excessive mucus).

  • Cold or flu (viral or bacterial infection increases sputum production).

  • Acid reflux irritates your throat and induces phlegm production.

  • An allergic reaction to dust or pollen may trigger your body to produce phlegm.

Triggers of Phlegm

There are a few triggers that induce phlegm formation, which include -

  • Tobacco smoke.

  • Chemical fumes.

  • Decreased consumption of water.

  • Dry air.

  • Dairy, fried foods, and certain medications like birth control pills and ACE (angiotensin-converting enzymes) inhibitors.

  • Increased loss of fluids from the body due to the consumption of tea, coffee, or alcohol can lead to dehydration.

Interpreting Phlegm: Color and Texture

The color of the phlegm depends on what induces the production of phlegm. The color can vary from yellow to green and black. It has diverse textures, ranging from thick to watery to sticky. Usually, the healthy phlegm is thin and runny. However, the texture changes depending on the illness, becoming thicker, stickier, and cloudier.

1. White or Clear Phlegm

It is normal to have some white or clear phlegm occasionally. However, if a significant amount of white or clear phlegm is produced, it may be an indication of inflammation in your airways or a flare-up of your existing lung condition. Clear phlegm is also indicative of hay fever or other allergies.

2. Yellow or Green Phlegm

If you notice yellow or green phlegm, it indicates that your body is fighting bacterial or viral infections. The color of the phlegm is due to the presence of white blood cells (immune cells). Initially, you will notice a yellow phlegm, and then it changes to a greenish color. This occurs due to the severity of the illness. Yellow or green phlegm is typically associated with bronchitis (inflammation of the bronchial tubes), sinusitis (inflammation of the membrane lining the sinuses), and pneumonia (a lung infection causing the accumulation of fluids or pus in the air sacs).

3. Phlegm Streaked With Blood

You may notice small streaks of blood in your phlegm when your airways become irritated from coughing. Persistent or large amounts of blood may suggest a more serious disease, such as a severe infection (for example, pneumonia or tuberculosis (a bacterial lung infection), a lung injury or trauma, or, in rare situations, lung cancer or a blood clot. You should seek medical assistance immediately if you notice these symptoms.

4. Brown or Black Phlegm

One of the most common causes of black phlegm is smoking. Brown phlegm is caused by exposure to dust or dirt, such as coal, pneumonia, bronchiectasis, chronic obstructive pulmonary disease, tuberculosis (TB), lung cancer, cystic fibrosis (a genetic disease that causes thickening of the mucus in the lungs), or fungal infections.

Evidence-Based Treatments and Medical Options:

Treatment for phlegm depends on the underlying condition and the cause of the phlegm.

  • Antibiotics are prescribed if the cause of phlegm formation is bacterial infections, which can lead to bronchitis or pneumonia.

  • In case of viral infections, treatment aims to alleviate the symptoms (rest and fluids).

  • If allergic reactions are the cause, antihistamines and nasal sprays are recommended to manage phlegm production.

  • In case of GERD (gastroesophageal reflux disease), proton pump inhibitors and certain lifestyle changes can help reduce the phlegm production caused by throat irritation.

  • Also, in cases of asthma and other long-lasting conditions, mucolytics are used to loosen the thick mucus.

Home Remedies and Self-Care Strategies:

In case of mild to moderate conditions, certain self-care techniques and home remedies help loosen your phlegm and expel it. However, if you are experiencing severe or chronic excess phlegm production, it is wise to consult a doctor and undergo medical treatment.

How to Get Rid of Phlegm?

Below are a few ways that help you get rid of the phlegm -

  • Using a humidifier helps keep the air in your room moist, which helps prevent thickening of the mucus and makes throwing up phlegm easier.

  • Drinking plenty of fluids keeps you hydrated and thins the phlegm, reducing congestion.

  • Drinking warm liquids, such as herbal teas (ginger, peppermint, or licorice) or broths (vegetable or chicken), can help soothe your throat and provide essential nutrients.

  • Gargling with saltwater helps clear your throat.

  • Steam inhalation helps loosen the phlegm.

  • Applying eucalyptus oil on your chest or adding several drops to a diffuser can help thin phlegm.

  • Avoid foods that induce acid reflux, as acid reflux can irritate your throat and cause phlegm production.

  • Controlled coughing helps expel phlegm from your lungs.

Prevention and Maintenance:

A few ways to prevent the formation of phlegm are as follows -

  • Wash your hands frequently and correctly to prevent the spread of infections that induce phlegm formation.

  • Stay away from triggers like pollen and pet dander that induce your allergic reaction.

  • Avoid smoking, as it is one of the lifestyle factors that induce phlegm formation.

  • Consume a healthy diet that includes a lot of fruits and vegetables, as they help improve your overall health.

  • Avoid dairy, fried, and sugary foods as they increase phlegm production.

When to Consult a Doctor?

The presence of phlegm in the lungs or throat does not always indicate a dangerous condition. It is how your body eliminates irritants in your throat and nasal passages.

But, schedule a pulmonologist consultation if the phlegm has been stuck in the throat for months, is becoming thicker, changing color, or increasing in volume, and if you experience fever, chest pain, breathlessness, coughing up blood, or wheezing.

Conclusion

Phlegm is typically a natural bodily response to diseases, allergies, or irritants. Mild cases can usually be managed at home with steam, water, and avoidance of triggers; however, unusual or persistent phlegm may require medical attention. You can get expert advice online at iCliniq if you or your loved ones have persistent phlegm. Our expert doctors can guide you through the necessary steps.

Key Takeaways:

  • Phlegm is a kind of mucus produced in the throat and lungs.

  • The color and texture of phlegm vary depending on the illness that is causing it.

  • If you have persistent phlegm and are unsure about its cause, you can consult our pulmonologist online at iCliniq for clear guidance.

Listen to related tracks in our music library

Frequently Asked Questions

Yes, if you notice increasing phlegm, changes in color, or symptoms like shortness of breath, chest tightness, or fatigue, it could mean your lung condition is worsening.

Drinking warm fluids, inhaling steam, staying hydrated, and doing gentle, controlled coughing can help loosen and clear phlegm naturally. Using a humidifier also keeps mucus thin and easier to expel.

Swallowing small amounts of phlegm is not harmful since it is broken down in your stomach, but spitting it out helps keep your airways clear and prevents irritation or infection from mucus buildup.

You should be concerned if green or yellow phlegm lasts longer than a week, has a foul smell, or is accompanied by fever, chest pain, or breathing problems, as it may signal a bacterial infection.

People with chronic lung disease can use breathing exercises, steam therapy, postural drainage, and medications like expectorants to clear mucus. Regular hydration and doctor-guided therapy help too.

Yes, allergies can trigger phlegm even without infection. When allergens like dust or pollen irritate your airways, your body produces excess mucus as a protective response, leading to throat congestion.

Yes, exercises like diaphragmatic breathing, pursed-lip breathing, and active cycle breathing techniques can loosen and move phlegm out of your airways, improving lung capacity and comfort.

If phlegm lingers in your throat for months, it may be due to chronic sinus drainage, acid reflux, allergies, or postnasal drip. Persistent mucus should be evaluated by a doctor for proper treatment.

Source Article IclonSourcesSource Article Arrow

Tags:

phlegm

Ask your health query to a doctor online

Pulmonology (Asthma Doctors)

*guaranteed answer within 4 hours

Disclaimer: No content published on this website is intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek advice from your physician or other qualified healthcare providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website. Read our Editorial Process to know how we create content for health articles and queries.