Image courtesy of marin at FreeDigitalPhotos.net The corollary to the expensive question and more relevant to patients being which ones are the cheapest? Given I'm an ENT, asthma medications are a class of medications I have not immersed myself in with respect to the minutiae of cost and optimal prescriptions... until now (at least to some degree). And given I personally did know this information until I took the time to investigate, I figure patients would be even more in the …