The updated pharmacological management section says inhaled corticosteroids may be associated with adverse effects, including reduced bone mineral density.
However, it adds that with careful dose adjustment this risk is likely to be outweighed by their ability to reduce the need for multiple bursts of oral corticosteroids.
The revised management section advises that asthma patients should be asked by their GP about past reactions to beta-blockers and NSAIDs.
Additional information has been added on oxygen therapy. The guidance says supplementary oxygen should be given urgently to hypoxaemic patients using a face mask, Venturi mask or nasal cannulae.
Oxygen saturation monitors should be available for clinicians assessing acute asthma in primary and acute care, it adds.