We recently had our bathroom remodeled. (3 months ago)
Just last week we noticed some white ooze coming out from under the calk where the tub meets the tile It's got a very strong sort of organic odor, almost like onions.
Upon closer examination, we found that the grout was already cracked out in several places, so water must be getting behind the wall. When we wipe the ooze away, it comes back, and definitely flows more after using the shower. We have also noticed that several other places on the wall have the same odor coming through the tile, although it is not everwhere.
The wall is an outside wall, and it had a window replaced (which is in the shower) as part of the remodel.
Any thoughts on what might be going on? Attaching a picture of the ooze.