One mother describes life caring for a child with severe asthma for the BBC.

Five-year-old Oscar’s life has regularly hung in the balance because of severe asthma.

On his second birthday, he was so ill he did not respond to any medicines, leaving his parents fearing the worst.

According to Asthma UK, it is difficult to know how many life-threatening asthma attacks happen every day in the UK, because not everyone seeks treatment for them and they can be difficult to define. But they estimate that someone in the UK has an attack every three seconds and many of those could be avoided if people heeded the warning signs and sought help quickly.