Inhalers and nasal sprays are a daily necessity for millions living with asthma, chronic sinus problems, and allergies. These medicines, which contain corticosteroids, help ease breathing and calm ...

Inhalers have been key to asthma management since the 1950s. The most common, salbutamol, comes in a familiar blue-coloured inhaler (or “puffer”). This kind of “rescue inhaler” brings quick relief ...