re: so the **** hit the fan, …
I would say its a big deal. Especially, the supposed blood thing. You probably should have told her its medicine however, you shouldnt need to.People are in pakistan are prude. Especially the lower social class from which the kaam waali hails from.
I can also understand the whole " good help is hard to find" thing. Its pretty common which I found on my last visit.
Confront her directly. At least that way she wont go crying to you MIL next time. And she will know you have a voice of your own!