Why colds and flu trigger your asthma
When you have a cold or flu, your airways become more inflamed and you produce more mucus – so there’s less room for the air to get through. This can make it harder to breathe, even if you only have mild asthma, and set off your asthma symptoms.
That's why it's vitally important to take care of yourself when winter bugs are about. 81% of people with asthma say their asthma symptoms get worse when they have a cold or flu, putting them at risk of a potentially life threatening asthma attack.
There have been more flu cases in February 2019 than expected, so we strongly advise getting the flu vaccine now if you haven't already.
5 ways to protect yourself from an asthma attack when you have a cold or flu:
- If you’ve got a preventer inhaler, take it every day, as prescribed. It helps to control inflammation in your lungs, meaning you’re less likely to have an asthma attack even if you do come into contact with a trigger like a cold or flu virus. Watch our videos to help you improve your inhaler technique so you get the best protection levels.
- Carry your reliever inhaler (usually blue) with you. If you need to use it three or more times a week, see your doctor.
- Keep your medicines close so you can reach them if you're ill in bed - you still need to take your preventer inhaler as prescribed.
- If after using your reliever inhaler your symptoms return within four hours, make a same-day appointment with your doctor.
- Rest. Take paracetamol for aches and pains and drink lots of water and other drinks. Flu especially can really wipe you out, so don’t try to do too much too soon.
5 steps to reduce the risks of colds and flu
- Wash your hands frequently to reduce the risk of catching a cold or flu.
- Take care to avoid sharing towels, cups or other household items with someone who may have a cold.
- Look after yourself: get plenty of sleep and try to eat a healthy, balanced diet.
- There's still time to get your annual flu vaccine if you haven't had it already. If you’ve been prescribed a preventer inhaler or have been in hospital because of asthma in the past, you can have the vaccination for free at your doctor’s surgery or many pharmacies.
- Arrange an asthma review with your doctor or asthma nurse. Ask them to update your Asthma Action Plan to help you stay well.
Advice if cold weather triggers your asthma
If you’re looking for help because cold weather makes your asthma worse, see our cold weather advice.