Does using the sauna help with asthma?

KLAFS FAQ for well-being

For those with asthma, or bronchitis with asthmatic symptoms, using the sauna can help by relaxing the muscles in the bronchioles. Asthma causes the muscles in your respiratory tracts to tense up, whilst the warmth inside the sauna enables them to relax again. Building up a defence system in this manner is doubly beneficial since those who suffer from asthma are also more susceptible to infections, which can lead to a vicious circle.