shortness of breath flare ups

Overview

Shortness of breath is the uncomfortable feeling that you cannot get enough air into your lungs. A flare-up is when this feeling suddenly becomes much worse than your usual level. It can happen in people with long-term lung conditions, such as asthma or COPD, but it can also happen because of an infection, a heart problem, or other triggers.

Shortness of breath is one of the most common reasons people seek medical care. Flare-ups are especially common in people with asthma, COPD, or heart conditions, and they become more likely with age.

Anyone can feel short of breath, but flare-ups are most often seen in people with underlying lung or heart conditions, older adults, people who smoke, and those with weakened immune systems.

Symptoms

Common symptoms

• Feeling like you cannot catch your breath or take a full breath
• Tightness in the chest
• Rapid or shallow breathing
• Wheezing, or a whistling sound when breathing
• Difficulty speaking full sentences without pausing for air
• Feeling tired or faint from the effort of breathing

Symptoms in children

• Breathing much faster than usual
• Flaring of the nostrils with each breath
• Pulling in of the skin between the ribs or at the base of the neck
• Making grunting sounds while breathing
• Being unusually sleepy, fussy, or hard to wake
• Having trouble feeding or drinking

Symptoms in older adults

• Feeling more confused, drowsy, or restless than usual
• Needing help to stand or do simple tasks
• Getting breathless just from walking across the room
• Losing interest in eating or drinking
• A sudden change in breathing speed, either faster or slower

Causes

Main causes

• A flare-up of a lung condition such as asthma, COPD, or bronchitis
• A chest infection, cold, or flu
• Allergies, pollen, or high air pollution levels
• Anxiety or a panic attack
• Heart problems, including heart failure
• Low blood oxygen from another serious illness

Risk factors

• Smoking or regular exposure to second-hand smoke
• Having a long-term lung or heart condition
• Being older or having a weakened immune system
• Living in areas with poor air quality or high seasonal pollen
• Stopping prescribed maintenance treatment without medical advice

When to see a doctor

See a doctor urgently if:

• Your flare-up has not improved after following your action plan or taking your prescribed reliever medicine as directed
• You are needing to use your reliever inhaler much more often than usual
• Everyday activities like walking or dressing have become increasingly difficult
• You develop a fever, chest pain, or a cough bringing up unusual or bloody mucus

Book a routine appointment if:

• You want a written action plan for managing future flare-ups
• You have had more than one flare-up in the past few months
• Your breathing is affecting your sleep, appetite, or daily life
• You would like to learn breathing exercises or join a pulmonary rehabilitation programme

Diagnosis

A healthcare provider will ask about your symptoms, medicines, and medical history. They will listen to your lungs, check your heart, and measure the oxygen level in your blood using a small sensor on your finger.

Tests that may be done

• Pulse oximetry — a small clip that measures oxygen in your blood
• Lung function tests, such as blowing into a tube to measure airflow
• Chest X-ray or other imaging
• Blood tests to look for infection, inflammation, or oxygen levels
• An ECG or other tests if a heart problem may be causing the breathlessness

What to expect at your appointment

The provider will explain what they think is causing the flare-up and help you decide whether you can be cared for at home or need further monitoring. You should leave with a clear next step, including when to call back or seek urgent care.

Treatment

Treatment for a flare-up focuses on opening your airways, improving oxygen levels, and treating the trigger. The right approach depends on what is causing the episode, so it is important to get personalised advice.

Self-care at home

• Sit upright and lean slightly forward to help your lungs open
• Use pursed-lip breathing — breathe in slowly through your nose, then breathe out pursed like you are blowing through a straw
• Take your prescribed reliever inhaler as directed, if you have one
• Keep the room cool and let fresh air move with a fan, if that feels helpful
• Rest and try to stay calm — panic can make breathlessness feel worse
• Sip small amounts of fluid if you can, unless your provider tells you otherwise

Medical treatments

Your healthcare team may prescribe inhaled medicines to relax and open the airways, or a short course of steroid tablets to reduce swelling and mucus. If a bacterial infection is confirmed, they may prescribe antibiotics. In hospital, oxygen therapy or breathing support may be used if your oxygen level is dangerously low. Always take medicines exactly as directed by your provider.

When is surgery considered?

Surgery is not usually used for a breathlessness flare-up itself. If there is a separate problem, such as a collection of fluid in the chest, a procedure may sometimes be needed, but this is not common.

Living with this condition

Living with a lung condition means having a plan before a flare-up happens. Know your usual level of breathlessness, write down what helps you, and keep important phone numbers near your phone. Share your plan with a family member or friend so they know what to do too.

Lifestyle tips

• Avoid your triggers, such as smoke, strong fumes, very cold air, or heavy dust
• Learn breathing techniques from a respiratory physiotherapist or nurse
• Use a home peak flow meter or oxygen monitor if your provider has advised one
• Ask family or friends to help with heavy chores on difficult days
• Get early advice during cold and flu season if you notice any signs of a chest infection

Diet and exercise

Eat small, balanced meals and stay well hydrated. For exercise, aim for a level that is safe for you — a respiratory therapist or physiotherapist can help design a plan. Gentle daily movement, like seated leg exercises or walking a short distance, can build strength without overtiring you. Stop if you become too breathless to speak.

Mental health and emotional wellbeing

Feeling breathless can be frightening, and living with a lung condition can cause anxiety or low mood. This is completely understandable. It can help to talk about your feelings, practice slow breathing and grounding exercises, and remember that panic can increase your heart rate and make breathlessness feel worse.

Prevention

Not every flare-up can be prevented, but many can be delayed or made less severe with a good action plan, early use of your prescribed treatments, and avoiding known triggers.

Vaccines

Stay up to date with recommended vaccines, including flu, COVID-19, and other vaccines your provider suggests for lung health. Vaccines reduce the risk of infections that commonly trigger flare-ups.

Screening programmes

If you have a lung condition, regular check-ups and monitoring, such as lung function tests or an annual review with your healthcare team, can help catch problems early and adjust your treatment.

Complications

If left untreated

• Severe breathing distress that makes it impossible to speak or eat
• Low oxygen levels that can damage the heart, brain, and other organs
• The need for emergency hospital care and intensive breathing support
• Repeated flare-ups that lead to faster loss of lung function
• Pneumonia or other serious infections

Long-term outlook

With prompt action and good treatment, most flare-ups settle without long-term harm. Even if you have had severe episodes before, a written plan and early help can make a real difference. Your breathing may take a little time to recover, but with patience and support, most people return close to their usual level.

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