i do let shower water go on my lip, it doesn't really bother it. Like you said i expect a month or two to really have %100 strength. The skin is strong and alive, no overgrowth. I wake up and know there will be no overgrowth. I still am cautious though, not to cause any damage. e.g. eating a burger. but i did that and nothing happened to my lips. The skin is strong but could be stronger. The best thing about this is i don't have a peeling cycle anymore.