m○●■ 6. Mr B, 30 years old, is a patient of asthma. His wife want to know if their 2 years old daughter will have asthma too? Which kind of prevention they can do?6.Mr B ,30 years old, is a patient of asthma. His wife want to know if their 2 years old daughter will have asthma too? Which kind of prevention they can do?