Lisa Rinna Connected to Charlie Sheen Drama

Lisa Rinna claims Charlie Sheen and Brooke Mueller's kids are in good hands ... because they're being taken care of by her former nanny.

Rinna told TMZ she and Harry Hamlin used the nanny for 6 years -- and added that the woman is "incredible."

As we first reported, Charlie was officially admitted into rehab last night at 8:00 PM.