Originally Posted by
WhistlePig
May statement was overly broad but nowhere near as broad as your absolute. It is not absolutely untrue. Medical conditions can resolve. Standards can be updated. Non-disapproved (notice I did not say approved) medications can be used. Tests can be re-administered under the correct conditions. Sure you still have to pass, burt there is no such thing as "one and done". Find a knowledgable specialist and keep trying.
I already provided links for two.
Not everything is waiverable, and certain conditions cannot be waivered. To suggest otherwise is absolutely false.