Asthma attacks come and go, with wide variation in the symptoms at different times. Many people with asthma have problems only occasionally but others struggle with it every day. Modern medicines control and relieve symptoms and so attacks may only last a few hours or minutes, but without treatment this may go on for several days. Some children grow out of asthma and some people are only affected at different times of the year. However, the period of time during which people may have asthma attacks can last for many years or throughout life.
