4 yr old has asthma.was exposed to smoke & couldn't quit coughing.she coughed up blood. wat causes the blood?is that considered an asthma attack?

Sounds like!: Sounds like an uncontrolled asthmatic! a more aggressive treatment with inhaled long acting steroids and inhaled bronchodilators will help. A quick visit to an allergist will help too! regards!

Asthma yes: A bad asthma attack that caused the body to cough, cough, cough. When someone coughs that much you can get a year in the esophagus that causes the blood. It is scary but not dangerous and it heals well by itself.