1. it is caused by allergies, that is when the body to breathe, or eat something to lose, have asthma. By removing what may be lost is the respiratory flow in the air such as dust, smoke, etc.
1. The cause of the allergy is when the body breathe or eat something to lose. It will have asthma up. It might be breathing something that's floating in the air, such as smoke, dust and so on.
1. Caused by allergies, that is, when the body is breathing or eating something lost in. It will make to have asthma? By may breathe what lose floating in the air, such as smoke, dust, etc.