Other possible symptoms include dizziness, confusion and nausea.
For most people, symptoms improve quickly once they move indoors and away from the smoke.
Some groups may be more susceptible to the effects of wildfire smoke, including young children, older adults, pregnant women, and those living with long-term lung or heart conditions.
For those people who fall into these higher risk groups, it is advisable to stay indoors where possible, keeping windows and doors closed, and to avoid exercising outside. If your home becomes too hot, move to the coolest room available, drink plenty of fluids, and wait until the smoke has cleared before opening windows.
Anyone living with a lung condition such as asthma or chronic obstructive pulmonary disease (COPD) should follow their escalation plan. Keep prescribed medicines and inhalers readily available, and continue using preventer inhalers daily as directed. If you are unsure whether you should begin a rescue pack, seek advice from your GP or pharmacist before doing so.
Symptoms may not appear immediately and can develop over the following days, so it is important to remain vigilant.
If you are unable to access your repeat prescription medication, visit NHS 111 online to request an emergency supply. This is usually the quickest option and will direct you to a pharmacy that can assist. If you cannot access the internet, call NHS 111.
Anyone who needs medical advice should contact NHS 111 or their GP practice. If you experience severe breathing difficulties or have a medical emergency, call 999 or attend the emergency department at your local hospital.