How severe can asthma become?

The table below illustrates the three degrees of asthma.

 MildIntermediateSevere
Day attacks2-3 per month3-4 per monthEvery day
and often
Night attacks1-2 per month3-4 per monthEvery day
and evenings
Result of
increased exercise
NormalFrequent cough,
laboured breathing
Exercise
not recommended
Drug treatmentBronchodilatorsBronchodilators and
anti-inflammatory drugs
Bronchodilators
and anti-inflammatory drugs
Frequently requires hospital care

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