Phlegm and mucus are not necessarily signs that something is wrong. In fact, mucus is an important part of the body's natural defense system. It helps trap dust, allergens, bacteria, viruses, and other particles before they reach deeper into the respiratory tract.

The problem begins when mucus becomes thick, excessive, or difficult to clear.

You may feel something stuck in your throat, need to clear your throat repeatedly, cough up phlegm in the morning, or experience a heavy sensation in your chest. These symptoms can occur with a common cold, allergies, sinus drainage, asthma, bronchitis, acid reflux, smoking, dehydration, and other conditions.

Fortunately, there are several simple measures that may help loosen mucus and make it easier to clear.

Here are 10 approaches worth knowing.

1. Drink Plenty of Fluids

One of the simplest ways to help loosen thick mucus is to stay adequately hydrated.

When you're dehydrated, mucus can become thicker and more difficult to move.

Water helps maintain normal hydration and may make respiratory secretions easier to cough up.

You don't necessarily need to force enormous amounts of water. Instead, drink regularly throughout the day and pay attention to signs of dehydration such as dark urine, dry mouth, or excessive thirst.

Warm liquids can also feel soothing when your throat is irritated.

Try:

• Warm water

• Herbal tea

• Clear soups

• Broths

If you have heart failure, advanced kidney disease, or another condition requiring fluid restriction, follow your healthcare professional's advice rather than deliberately increasing fluid intake.

2. Take a Warm Shower or Use Humidified Air

Dry air can make an irritated throat feel worse and may contribute to thicker-feeling mucus.

A warm shower can provide temporary relief by exposing your airways to moist air.

Some people also find that a humidifier makes breathing more comfortable, particularly during dry weather or at night.

However, humidifiers need to be cleaned properly.

A dirty humidifier can become a source of mold, bacteria, and other contaminants, potentially making respiratory symptoms worse.

Keep humidity at a comfortable level rather than making the room excessively damp.

3. Try Saline Nasal Rinsing

Sometimes the mucus you feel in your throat isn't actually coming from your lungs.

It may be postnasal drip, in which mucus from the nose or sinuses drains down the back of the throat.

This can happen with allergies, colds, sinus irritation, or exposure to environmental triggers.

A saline nasal spray or properly performed saline rinse can help wash away mucus and irritants from the nasal passages.

If you use a neti pot or another nasal irrigation device, use distilled, sterile, or previously boiled and cooled water.

Do not use untreated tap water for nasal irrigation.

Keeping the nasal passages clear may reduce the amount of mucus draining into the throat.

4. Use Honey for a Cough

If mucus is accompanied by coughing and throat irritation, honey may provide some relief.

Honey can coat and soothe an irritated throat, and research suggests it may help reduce cough symptoms, particularly in children with upper respiratory infections.

You can add a small amount to warm water or tea.

However, honey should never be given to children younger than 1 year because of the risk of infant botulism.

For adults and older children, honey can be a simple soothing option.

It doesn't remove the underlying cause of mucus, but reducing throat irritation may make coughing more manageable.

5. Keep Your Head Slightly Elevated

Mucus can feel worse when you're lying completely flat, particularly if you have postnasal drip or acid reflux.

Elevating your upper body slightly while sleeping may help reduce the sensation of mucus collecting in your throat.

If reflux contributes to your symptoms, avoiding large meals close to bedtime can also help.

Try finishing dinner several hours before lying down and avoid foods that consistently trigger your reflux.

Simply adding more pillows under your head may not provide the best support. For some people, elevating the upper part of the mattress or using a suitable wedge can be more comfortable.

6. Avoid Cigarette Smoke and Other Irritants

Smoking is one of the most important things to address if you regularly produce excess mucus.

Tobacco smoke irritates the airways and can increase mucus production while impairing the normal mechanisms that help clear mucus.

Secondhand smoke can also irritate the respiratory tract.

Other potential triggers include:

• Strong chemical fumes

• Heavy air pollution

• Dust

• Aerosol sprays

• Certain fragrances

Reducing exposure can help decrease airway irritation.

If you smoke and regularly cough up phlegm, particularly in the morning, it is worth discussing the symptom with a healthcare professional.

A persistent productive cough can sometimes be a sign of chronic bronchitis or another lung condition.

7. Try Gentle Coughing Techniques

Coughing is one of the body's natural ways of removing mucus from the airways.

However, repeatedly forcing harsh coughs can irritate your throat and leave you exhausted.

A technique called huff coughing may help some people move mucus without repeated forceful coughing.

One simple approach is to:

1. Sit upright.

2. Take a slow, comfortable breath in.

3. Hold it briefly.

4. Open your mouth and forcefully exhale while making a "huff" sound, as if you're trying to fog a mirror.

5. Repeat once or twice.

6. Follow with a normal cough if mucus has moved upward.

People with chronic lung conditions may benefit from learning airway-clearance techniques from a respiratory therapist or healthcare professional.

8. Stay Physically Active When You Feel Well Enough

Gentle physical activity can help keep you moving and may support normal airway clearance.

Walking is often enough.

You don't need an intense workout when you're dealing with a respiratory infection.

A short walk around the house or outside, if you feel well enough and the environment is suitable, can help prevent prolonged inactivity.

If you have significant shortness of breath, chest pain, dizziness, or fever, however, exercise should not be your priority.

Rest and medical evaluation may be more appropriate.

9. Manage Allergies and Nasal Congestion

If your mucus is related to allergies, simply trying to cough it out may not solve the problem.

The underlying nasal inflammation needs attention.

Common allergy triggers include:

• Pollen

• Dust mites

• Pet dander

• Mold

• Certain environmental irritants

Reducing exposure to known triggers can decrease mucus production.

Depending on the cause, a healthcare professional may recommend treatments such as antihistamines or nasal corticosteroid sprays.

Not every medication is appropriate for everyone, so it is important to follow product instructions and seek professional advice if symptoms are persistent.

10. Treat the Underlying Cause

Perhaps the most important point is that mucus itself is a symptom, not a disease.

If you repeatedly develop phlegm, the goal should be to identify why.

Possible causes include:

Common Colds

Viral respiratory infections can increase mucus production and cause coughing, congestion, and sore throat.

Symptoms usually improve gradually with time.

Allergies

Allergic rhinitis can produce large amounts of clear mucus and postnasal drip.

Asthma

Some people with asthma experience coughing, wheezing, chest tightness, and increased mucus.

Bronchitis

Acute bronchitis can cause a persistent cough that may produce mucus, often following a viral infection.

Acid Reflux

Stomach acid reaching the esophagus or throat can cause throat clearing, coughing, hoarseness, and a sensation of mucus.

Chronic Lung Conditions

Conditions such as chronic obstructive pulmonary disease (COPD) can cause long-term mucus production and coughing.

If your symptoms keep returning, treating the underlying condition is much more effective than repeatedly trying to suppress mucus.

What Does the Color of Phlegm Mean?

People often assume that green or yellow phlegm automatically means a bacterial infection.

That's not necessarily true.

Mucus can change color during viral infections because of immune cells and other substances present in the respiratory secretions.

Clear, white, yellow, or green mucus does not by itself determine whether antibiotics are needed.

Likewise, antibiotics do not treat viral infections.

If symptoms are severe, persistent, or worsening, a healthcare professional can determine whether further testing or treatment is necessary.

What About Drinking Milk?

A common belief is that milk "creates more mucus."

For most people, there is no strong evidence that drinking milk actually increases mucus production.

However, milk can temporarily leave a thicker sensation in the mouth or throat because of its texture.

If you notice that certain foods make you feel more congested or uncomfortable, you can adjust your diet based on your own tolerance.

There is generally no reason for everyone to eliminate dairy solely because they have phlegm.

Be Careful With "Mucus-Clearing" Supplements

The internet is full of supplements and herbal remedies marketed as natural mucus cleansers.

Some may provide temporary symptom relief, but evidence varies considerably.

Natural products can also interact with medications or cause side effects.

Be particularly cautious with products that promise to "cleanse the lungs," "remove toxins," or "detox the respiratory system."

Your lungs already have sophisticated mechanisms for clearing particles and mucus.

The best strategy is usually to address the underlying cause and avoid substances that irritate the airways.

When Phlegm Could Signal Something More Serious

Most short-term mucus is not dangerous.

However, persistent or severe symptoms deserve medical attention.

See a healthcare professional if you have:

• A cough lasting more than several weeks

• Repeated episodes of excessive phlegm

• Unexplained weight loss

• Persistent fever

• Night sweats

• Wheezing

• Increasing shortness of breath

• Chest pain

• Recurrent respiratory infections

These symptoms can occur with many different conditions, and they do not automatically mean something serious is wrong.

But persistent respiratory symptoms should not simply be ignored.

Coughing Up Blood Is Different

If you see blood in your phlegm, don't assume it is simply from throat irritation.

A small streak of blood can sometimes occur after forceful coughing, but blood in sputum can also be associated with infections, airway inflammation, blood clots, or other lung conditions.

If you cough up a significant amount of blood, have difficulty breathing, experience chest pain, or feel faint, seek emergency medical attention.

When to Seek Emergency Care

Mucus alone is rarely an emergency.

But respiratory symptoms combined with severe breathing difficulty can be.

Seek urgent medical help if you experience:

Severe shortness of breath

Blue or gray lips or face

Severe or persistent chest pain

Confusion or inability to stay awake

Coughing up a large amount of blood

Sudden breathing difficulty

These symptoms can indicate a serious respiratory or cardiovascular problem.

The Bottom Line

Phlegm and mucus are normal parts of the body's respiratory defense system, but excessive or persistent mucus can be uncomfortable and may signal an underlying problem.

Simple measures such as staying hydrated, using humidified air, rinsing the nasal passages with safe saline solutions, avoiding smoke, managing allergies, using honey for throat irritation, and practicing gentle airway-clearance techniques may help.

But the most effective long-term strategy is to understand why you're producing so much mucus in the first place.

A cold may simply need time and supportive care.

Allergies may require better trigger control.

Acid reflux may improve with dietary and lifestyle changes.

Smoking-related mucus may improve after quitting.

And chronic coughing or breathing problems may require a proper medical evaluation.

Don't focus only on getting rid of the mucus. Pay attention to what your body may be trying to tell you.

If phlegm persists, keeps returning, or comes with breathing difficulty, chest pain, fever, unexplained weight loss, or blood, getting checked by a healthcare professional is far more important than trying another home remedy.