People whose brothers, sisters or parents have asthma are more likely to develop the illness themselves. Some people also inherit a tendency to develop allergies. This is not to say that a parent can pass on a specific type of allergy to a child. In other words, it doesn't mean that if your mother is allergic to bananas, you will be too. But you may develop allergies to something else, like pollen or mold.
Allergies can trigger asthma in some people.
Substance in our environment can cause an asthma attack. No, there is no cure for asthma. Although asthma cannot be cured it can be controlled. There are many medicines that help people with asthma. Some are preventive medicines and others are known as quick relievers.