It wasn't until the mid 20th century that doctors realised asthma attacks were caused by the swelling and contraction of the airways, Consequently, in the last 40 years there have been many devclopments in the treatment of asthma. There are presently two main types of medicine: preventers and relievers. A preventer is used every day and reduces the swelling of the airways, cutting the risk of an attack. A reliever, such as Ventolin, is taken when breathing has become dificult; this actually relaxes the muscles of the airways, reducing constriction and improving the arflow. The medicine is usually taken using a device for medical purpose. Prevention is also good treatment, so if you have asthma, remember to keep generally healthy, take regular exercise andlots of vitamin C to avoid colds and flu- which can be dangerous for asthma sufferers. A healthy diet is also important, and do watch what you eat, as certain foods or food with certain substances to change the flavor can start asthma. By taking the right medication and making the right lifestyle choices, there is no reason why most asthma sufferers shouldn't be able to lead perfectly healthy and active lives.
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the swelling and contraction of the airways
