The person you care for may have symptoms or side effects caused by cancer or its treatment. Symptoms and side effects can usually be prevented or well controlled.
The person you care for may not be able to tell you if they have symptoms or side effects. You may have to ask them. It can help to look for signs in their body language or facial expressions.
Some symptoms or side effects of cancer may be similar to ones caused by dementia. If the person you care for has symptoms that you are worried about, talk to the doctor or nurse.