Paediatricsmiddle twist
At an immunisation visit, the mother of a 3-year-old boy says he hits his 10-month-old sister several times a day, usually while she is being fed. She has tried telling him off later in the evening, without effect, and asks whether she should smack him, because nothing else works. He is developing normally, plays well at childcare, and there are no concerns about his sister. Which one of the following is the most appropriate advice?