Asthma occurs when parts of the lung are very sensitive or easily bothered by something in the air. A person with asthma may be exposed to new things in this country which bother or irritate the lungs. All of these things can make asthma symptoms worse. Asthma can occur inside a house or outside. Houses in the United States are built to be closed off from the outside.
Houses can trap things inside that make asthma symptoms worse.
Usually there is no fever. These symptoms occur because the lungs close down. It is hard for air to get in and out of the lungs. Asthma usually occurs in episodes or attacks. Asthma can be worse during certain months of the year or at night.