bronchitis flare ups

Overview

Bronchitis means inflammation of the bronchial tubes, the air passages that carry air into your lungs. A flare-up is a period when your symptoms, like cough, mucus, and shortness of breath, become suddenly worse. This often happens in people who have chronic bronchitis or another long-term lung condition, but it can also happen after a cold or chest infection.

It is very common. Many people with chronic obstructive pulmonary disease (COPD) have flare-ups, and acute bronchitis affects millions of people each year, especially in winter.

Anyone can get bronchitis, but flare-ups are more common in people over 40, people who smoke, and those with asthma, COPD, or a weakened immune system.

Symptoms

Common symptoms

• A cough that gets worse and may bring up mucus
• Wheezing (a whistling sound when you breathe)
• Shortness of breath or feeling out of breath
• Tightness or heaviness in the chest
• Tiredness and low energy
• Mild fever or chills

Symptoms in children

• A hacking cough that may last for a few weeks
• Noisy or fast breathing
• Difficulty feeding or drinking
• Fussiness or drowsiness
• Chest retractions (the skin pulling in between the ribs when breathing)

Symptoms in older adults

• Sudden confusion or confusion that gets worse
• Increased drowsiness or trouble waking up
• Worsening shortness of breath with little activity
• Cough producing thicker or discoloured mucus
• Low oxygen levels, which may cause blue lips or fingertips

Causes

Main causes

• Viral infections, such as the cold or flu virus
• Bacterial infections (less common)
• Breathing in irritants like cigarette smoke, dust, or chemical fumes
• A sudden change in temperature or very cold air
• Allergic triggers, such as pollen or mould

Risk factors

• Smoking or long-term exposure to secondhand smoke
• Having chronic bronchitis, emphysema, or COPD
• Asthma or other lung conditions
• Frequent respiratory infections
• Working in dusty, smoky, or polluted environments
• A weakened immune system from age or illness

When to see a doctor

See a doctor urgently if:

• You have trouble breathing, even when resting
• Your cough brings up blood
• You have a high fever or symptoms that keep getting worse
• You feel confused, very sleepy, or have chest pain

Book a routine appointment if:

• Your cough lasts more than 3 weeks
• You keep having flare-ups even after treatment
• Your mucus becomes thick, yellow, or green
• You want help to quit smoking or to manage a long-term lung condition

Diagnosis

A doctor will usually diagnose bronchitis by asking about your symptoms, listening to your lungs, and checking your oxygen levels. They may also ask about your health history, such as whether you smoke or have asthma.

Tests that may be done

• Physical exam and listening to your chest
• Pulse oximetry (a small sensor on your finger to measure oxygen in your blood)
• Chest X-ray to rule out pneumonia
• Sputum (mucus) sample to check for bacteria
• Pulmonary function test to see how well your lungs are working

What to expect at your appointment

The visit usually takes about 20 to 30 minutes. You may be asked to cough or breathe deeply while the doctor listens. If the doctor suspects a long-term condition, they may refer you for breathing tests.

Treatment

Treatment for a bronchitis flare-up focuses on easing symptoms and helping you breathe more comfortably. Most flare-ups are caused by viruses, so medicines that fight bacteria (antibiotics) are often not needed. Your doctor will decide the best plan based on your symptoms, your health history, and whether you have an underlying lung condition.

Self-care at home

• Rest as much as you can to give your body energy to fight the infection
• Drink plenty of water, warm teas, or broth to keep mucus loose
• Use a cool-mist humidifier or take a steamy shower to soothe your airways
• Try honey (for people over 1 year old) to calm a cough — check with your doctor first
• Avoid smoke, strong fumes, and cold air that can irritate your lungs
• Elevate your head with extra pillows to help breathing at night

Medical treatments

Your doctor may recommend medicines that relax the airway muscles (such as inhalers called bronchodilators) or medicines that reduce airway swelling (such as inhaled steroids). If a bacterial infection is confirmed, antibiotics may be prescribed, but they are not used for typical viral flare-ups. Oxygen therapy may be used in hospital if your oxygen levels are low.

When is surgery considered?

Surgery is not used to treat bronchitis or flare-ups. In very rare cases, some people with advanced lung disease may consider other procedures, but these are not first-line treatments.

Living with this condition

During a flare-up, take things slowly. Keep a glass of water nearby, or use a humidifier in your bedroom. Do gentle activities like short walks if you feel up to it. It is normal to feel tired, so listen to your body and rest when you need to. Keep a spare inhaler or medicines nearby if your doctor has prescribed them.

Lifestyle tips

• If you smoke, quitting smoking is the single most important step
• Avoid secondhand smoke and outdoor pollution on high-smog days
• Wash your hands often to reduce the chance of spreading infections
• Get enough sleep and manage stress to keep your immune system strong
• Tell your healthcare provider about any new or worsening symptoms

Diet and exercise

Eating a balanced diet with fruits, vegetables, and whole grains can support your immune system. Gentle exercise, like slow walking or stretching, can help keep your lungs active. Try not to overdo it — start with short sessions and rest between activities. If you feel breathless, stop and rest.

Mental health and emotional wellbeing

Living with repeated flare-ups can be stressful and sometimes affects your mood. It is common to feel anxious about shortness of breath or worried about the future. Talking to a friend, family member, or counsellor can help. If you are struggling with low mood or anxiety, tell your healthcare team — they can point you to support.

Prevention

There is no guaranteed way to prevent every flare-up, but you can reduce the chance by avoiding your triggers, staying active, and keeping your lungs healthy. The most important thing is to avoid smoking and to keep up with your regular check-ups.

Vaccines

Staying up to date with recommended vaccines can help prevent infections that often lead to flare-ups. This may include the annual flu vaccine and vaccines that protect against pneumonia and whooping cough. Ask your healthcare team which vaccines are recommended for you.

Screening programmes

There is no routine screening test for bronchitis in healthy people. However, if you have a long-term cough or repeated flare-ups, your doctor may recommend lung function tests to check for conditions like asthma or COPD.

Complications

If left untreated

• Pneumonia, if the infection spreads deeper into the lungs
• Respiratory failure, when blood oxygen levels become dangerously low
• Worsening of COPD or other long-term lung conditions
• Repeated flare-ups that lead to hospital visits
• Damage to airway walls (bronchiectasis) in severe cases

Long-term outlook

Most people with a bronchitis flare-up feel better within a few weeks. Even for those with chronic bronchitis, flare-ups can often be managed with the right care and a plan to reduce triggers. With support from your healthcare team and a few lifestyle changes, you can keep your lungs healthier and lower your chance of future flare-ups.

Find support

External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.