Hi mackm (Mack), and thanks for your post. You may be aware we cannot provide medical advice or diagnostics over the internet (for your own safety), but your concern certainly warrants a reply.
This disease (asthma) affects everyone differently. The same can be said for medications. Medications and dosages can vary considerably from patient to patient. Having said that, the best person for you to address your immediate concern with (about prednisone dosages and length of time of treatment), is your prescribing physician. The doctor will be able to explain how long he/she expects you to stay on this medication as well as when you should start to see results.
What do you think?
Leon (site moderator asthma.net)