Dr Bernadette Carr is here to answer your questions

I wonder if my four-year-old son has asthma. He had a respiratory infection with a wheeze, his GP prescribed an inhaler and he recovered. 

I notice him wheezing occasionally, and there is a history of asthma in my husband’s family.

Asthma is commonest in children and is often associated, at onset, with a recent history of a viral upper respiratory tract infection.