Chest radiotherapy includes radiotherapy to the breast, your chest wall (if you've had surgery to remove your breast) or to your chest itself. This can include radiotherapy to the lungs.
Side effects will depend on where you're having treatment to.
Radiotherapy to the chest can also cause some general side effects, such as sore skin.
You might have trouble swallowing (dysphagia) during and after radiotherapy treatment to the chest. There are a number of things that you can do to help.
You might feel sick when having chest radiotherapy. Find out how to help with this.
Shortness of breath can happen during and after chest radiotherapy and more rarely for radiotherapy to the breast.
Find out about lymphoedema after breast cancer treatment, including how you can lower your risk of getting it and how to manage it.