I did a little research on Google (I was curious! and this is what I came up with....sorry I can't post all the web sites but I am sure you would be able to find them on your own!
" Hydrotherapy for the chest is useful for angina pectoris, bronchial asthma and bronchitis. Water temperature should be moderated if there is angiospasm risk. Water therapy for the upper trunk (upper torso and arms) is useful for improving blood flow to the heart, lungs and pleura. It is useful for stimulating respiratory and cardiac activity, toning up, varicose veins, nervous excitability, headaches, disease of larynx and vocal cords, bronchial asthma and bronchitis. This method of hydrotherapy should not be used if there is blood stasis in the pulmonary circulation. "
I think I am allowed to post these web sites ( I guess they will delete them if we are not!).....
[url] [url]http://www.nationaljewish.org/news/ats2003.html#item2[/url] [/url]
I hope this is what you are looking for....