We were putting a steroid cream on Keira’s…

We were putting a steroid cream on Keira’s face to clear up a bad rash. A few days later she seemed a bit more lucid, using sentences that weren‘t scripted. Unfortunately a few days after that she started wetting herself (same problem that happens with chlorine).
The question is – what part of the steroid cream activates her brain and what part deactivates her bladder? Hopefully they are not the same part.