I always have aquaphor with me, or at least a chapstick. The white line that forms maybe once a day I just simply wipe away. But I find that it forms less and less now days. It doesn't bother me at all though really.
This is how my lips ALWAYS look, there is no "worst" my lips don't really peel anymore.
My lips don't sting at all, ever...the build up I get is nothing like what I used to get, it's just like I said earlier, if you rub your palms together for about 10 seconds there will be some dead skin that exfoliates, this is somewhat comparable to my lips.
In this picture I actually DO have stuff on my lips. What I do is put the aquaphor on and then rub the excess off and pat it dry so my lips look normal. :) I do believe my lips are slowly healing this way though, so it's not just managing it. Hope that helps!