Hiya -

Was this a pulmonary specialist or a GP?  The reason I ask, is that I am
very surprised that you are taking Serevent without a steroid inhaler as
a preventative.  Serevent is basically a long acting version of the
albuterol you are already taking, and I thought the standard was to give
 Serevent with a steroid inhaler like Flovent.  They are combined in
the Advair inhaler with different strengths of Flovent or you can take
them seperately. Inhaled steroids have far less side effects than oral
steroids (and I take both). I took Singulair briefly, as it didn't do
much for me personally, but I think I still took Flovent with it.  It
seems that Singulair is the only preventative you are taking, and that
could be a mistake.  Inhaled steroids are definitely your best line of
defense.

As far as peak flows, they are a very individualized thing.  My personal
best is 450, but that has only happened in the hospital after being on
IV steroids and constant nebulizers for a few days.  I don't hit that
number very often.  I'm usually in the 350's and that is MY normal.  You
can't compare numbers with others.....you can compare ranges if you want
to compare anything.  You should have a green, yellow and red range.
Green is good, yellow means something wrong and you should consult the
doc, red means get to the ER.  I'm heading into my bad time, so pay real
strict attention to peak flows starting from now.  Even a 5 point drop
can be a warning signal, so my doc and I have plans in place.

I hope you continue to improve and everything works out for you.  I
would ask the doc about inhaled steroids, and see if they coul be of
some help to you.