At a glance
- Respiratory infections and smoke or other irritants are common flare-up triggers.
- Quitting smoking, recommended vaccines, regular treatment and pulmonary rehabilitation each address a different cause.
- Agree a written action plan with your care team before the next flare-up.
01
What a flare-up is and why prevention matters
A COPD flare-up, also called an exacerbation, is a period when breathing symptoms become worse than your usual pattern over a short time. The WHO describes flare-ups as episodes that usually last a few days and often need additional medicine. Recognising one and knowing when it is an emergency is covered in the urgent-help section of the COPD guide; this page is about lowering the chance of the next one.
Prevention is not a single step. The measures below work on different causes: smoke and other irritants, respiratory infections, day-to-day treatment, physical conditioning and the plan you agree in advance. None of them guarantees that a flare-up will not happen, and the right combination depends on your diagnosis, other conditions and what your care team recommends.
02
Common triggers
Respiratory infections are the trigger named most often. The WHO states that flare-ups are often caused by a respiratory infection, and the NHLBI notes that infections can trigger them. Influenza is one example: in a Cochrane review, the drop in flare-ups after flu vaccination was linked to fewer influenza-related episodes. This is why vaccination appears in prevention advice from each of the cited sources.
Lung irritants matter too. The NHLBI advises staying away from chemical fumes, dust and smoke, and the WHO highlights second-hand smoke and smoke from indoor cooking fires. Some flare-ups have no clear cause even after assessment. Keeping a short note of what happened before each episode, such as a cold, a smoky environment or missed treatment, can help you and your care team look for a pattern.
03
Steps that lower the risk
The table summarises what the cited sources support and a question to take to your next appointment. It is a checklist for discussion, not a treatment plan; doses, medicine choices and eligibility for each step are decided with your care team.
| Step | What the sources say | Question to ask |
|---|---|---|
| Stop smoking and avoid smoke | The WHO calls quitting the most important thing to do and says it helps even after many years of smoking. It also advises avoiding second-hand smoke and indoor cooking smoke. | What support or medicines could help me quit? |
| Keep recommended vaccines up to date | The NHLBI lists COVID-19, flu and pneumonia vaccines, plus RSV, Tdap and shingles vaccines for certain groups. A Cochrane review found that inactivated flu vaccine reduced flare-ups, based on small trials. | Which vaccines are due for me this season? |
| Take maintenance treatment as prescribed | The NHLBI says people with moderate or severe COPD may need long-acting medicines taken every day, and suggests bringing your inhaler to visits so technique can be checked. | Is my current treatment right, and is my technique working? |
| Ask about pulmonary rehabilitation | A supervised programme of exercise training, education and breathing techniques. In trials started during or soon after a flare-up, it reduced readmissions and improved quality of life and walking distance. | Am I eligible, and is a home or remote option available? |
| Limit irritants and polluted air | The NHLBI advises avoiding fumes, dust and smoke, keeping windows closed and staying home when outdoor pollution or dust is high, and considering an air filter. | Which exposures in my home or work should I reduce first? |
| Agree a written action plan | In a Cochrane review, action plans with brief education reduced emergency visits and hospital admissions. People using plans also received more steroid and antibiotic courses, so the plan must be set by a clinician. | What should I do first, and whom should I contact? |
The evidence behind each step differs. The flu-vaccine finding comes from a small number of older trials, and the rehabilitation trials varied widely in design. That is a reason to ask how each step applies to you, not a reason to skip the steps your care team recommends.
Find support for quitting tobacco
04
Where to check which vaccines apply to you
Vaccine schedules are set nationally and are revised, so check the current official page and ask a clinician or pharmacist which vaccines are due. This guide does not decide eligibility or timing.
- United States and Puerto Rico: the CDC's adult vaccine page says people with lung disease, including COPD, are at higher risk of serious problems. It lists pneumococcal vaccine for this group alongside routine flu, COVID-19 and Tdap or Td vaccines for adults.
- Japan: the Ministry of Health, Labour and Welfare's influenza page lists routine vaccination for people aged 65 and over, and for people aged 60 to 64 whose heart, kidney or respiratory impairment severely limits daily life. Periods and costs differ by municipality, so ask your city office, health centre or doctor.
- Elsewhere: use your national or regional immunisation schedule and ask your care team which vaccines a person with COPD should have.
If you have had a vaccine recently, keep a record of its name and date with your medicine list. That makes it easier for the next clinician to see what is still due, especially when care happens in different places.
05
After a flare-up
A flare-up is a useful moment to review prevention. The NHLBI advises discussing a plan for treating flare-ups with your provider and notes that antibiotics may be used when a flare-up is caused by infection; that decision belongs to the clinician who assesses you. Ask for a follow-up visit if one has not been arranged, and bring a note of what happened and what helped.
Use the visit to update your written plan, check your inhaler technique, confirm which vaccines are due and ask whether pulmonary rehabilitation is available. In the Cochrane review of rehabilitation after flare-ups, programmes started either in hospital or after discharge, so it is worth asking even if you have already gone home.
06
Questions to take to your care team
Bring these questions to a routine appointment rather than waiting for the next flare-up. Write down the answers, including whom to contact and when, and keep them with your action plan.
- What usually triggers my flare-ups, and what can I change first?
- Which vaccines are due for me now, and where can I get them?
- Is my maintenance treatment still right for me, and can you check my inhaler technique?
- Can I join a pulmonary rehabilitation programme, including a home or remote option?
- What does my written action plan tell me to do, and whom do I call out of hours?
- When should we review this plan again?
Sources
- COPD: Living WithNational Heart, Lung, and Blood Institute · 2024Source accessed:
- COPD: TreatmentNational Heart, Lung, and Blood Institute · 2024Source accessed:
- Chronic obstructive pulmonary disease (COPD) fact sheetWorld Health Organization · 2026Source accessed:
- Vaccines for Adults: Recommended VaccinesCenters for Disease Control and Prevention · 2024Source accessed:
- インフルエンザワクチン（季節性）Ministry of Health, Labour and Welfare (Japan)Source accessed:
- Influenza vaccine for chronic obstructive pulmonary disease (COPD)Cochrane (Kopsaftis, Wood-Baker and Poole) · 2018Source accessed:
- Pulmonary rehabilitation following exacerbations of chronic obstructive pulmonary diseaseCochrane (Puhan, Gimeno-Santos, Cates and Troosters) · 2016Source accessed:
- Action plans with brief patient education for exacerbations in COPDCochrane (Howcroft, Walters, Wood-Baker and Walters) · 2016Source accessed:
Revision history
- Initial English, Spanish and Japanese article prepared with automated assistance. The cited sources were checked for the complete article on 2026-10-22T07:23:38Z (UTC). Publication and preparation use the current date; no historical date was assigned. No independent clinical review is recorded.