The first new asthma drug for nearly 20 years could have the power to significantly reduce the severity of the condition, researchers have found.

Children whose grandmothers smoked have a heightened risk of asthma even if their mothers avoided the habit, a study has shown.

Abi Jackson says a proper diagnosis is crucial for asthma.

Children with asthma may not realise they are allergic to peanuts because the symptoms are so similar, a study has suggested.