We live in LA and it rains every once in awhile. I noticed recently that there is a bubble on my wall and I can actually push it around. The wall is plaster and we have latex paint on top. (There are many layers, b/c this house is 90 years old, so the bottom layers may be other kind of paint.)
I know that eventually I will have to fix where the source of the water leak is, but I. The mean time can I just pop this bubble by making a tiny pinhole to drain it? Or is it a bad thing to do. I don’t want the hole to grow bigger.