<div class="FTQUOTE"><begin quote><i>Originally posted by: <b>sue35</b></i>
does a barrel chest go away. For example, if I am sick I think it looks worse, is that possible?</end quote></div>
Barrel chested look is usually from air trapping in the lungs. The sicker you are, the more air you have trapped, the more obvious the barrel chested.
This applies to lung damage also so even when you arent "sick", the air could be trapped throughout the lungs if they are damaged enough not to get all the air in/out properly.
IMHO after a certain point the look never goes away, but like so many other things with CF it varies.