Many people writing posts here in the past 5 years have talked about having gone on vacations or even longer visits to other places (longer visit = a summer here, a month there), and some have reported a great improvement in their lips during their vacations/holidays, while others have reported no change at all.

You can search this forum for the terms "vacation", "trip", and "holiday", which will probably bring up several historical posts.

I'm on vacation right now in a super humid asian country. Been here for two weeks and my lips have only gotten worse. I used to think my problem had to do with the dry climate in the US, but I guess not.