Dr Phil Kieran: My teenager is finding it difficult to shake off her bug

Most of the time, when we pick up a bug, it will take somewhere between one and two weeks to settle down

Dr Phil Kieran: "Fatigue can have many different causes, and figuring out what is going on can be challenging."

Nearly everyone in my family has picked up a bug in the past month. We have all managed to shake it off, but my 14-year-old daughter is still congested and feeling unwell. She is still going to school but feels exhausted at the end of the day. What would you suggest?

Being sick is bad enough without feeling exhausted long after everyone else in the family gets better.