Asthma is an affliction that closes the airways into the lungs, this is due most times to allergic reactions to many different things in the air. The brain receives a message that something is irritating the bronchi inside the lungs and automatically it starts to tighten the muscles around the throat and airways. Once the process starts it can only be reverse with medication. Many people have died during a crisis because action was not taken on time to provide medical care. This is why it is so important to be aware of the signs and the way the body reacts when a crisis is on the way. The initial signs of an asthma attack are nasal congestion, sneezing and wheezing as the lungs fight to receive air and expel the foreign substance irritating the bronchi.
At this point, and if the allergen invasion is not too violent, personal medication can reverse it. This of course depends on if the person has been taking his or her medication as prescribed by his doctor. A boost of medicine at this point may solve the problem by opening the lungs again. If medication is not taken yellow light signs will show up, they are called yellow light because they are a warning of worse things to come, possibly very soon. As the airway muscles continue to tighten around the airways and breathing is harder chest pains and a feeling of pressure, like someone sitting on your chest will be felt.