 Investigations into asthma deaths in the UK have found that the way patients were managed in the time leading up to their death could be improved significantly and half of asthma deaths are potentially avoidable. For most people with asthma, symptoms can come and go and sometimes be erratic. To prevent these symptoms, there is a window of opportunity to intervene with the appropriate care. This window occurs between when someone experiences early symptoms like night cough or wheeze and when they experience a full-blown asthma attack. 