Hi, Folks

New to this area of the boards
My 15-month-old niece was recently diagnosed with staph & MRSA. It had started with a diaper rash. The diaper rash soon turned into three or four very large boils on the child's vagina and leg. The parents took her right to their pediatrician who lanced and drained them (awful experience for both the child and parents). Doc had samples tested.
Results came back as staph & MRSA.
The doc had prescribed liquid Septra at the lancing appointment and instructed Mom and Dad to keep her on it for 10 days and to call if things worsened. And that's it.
We have a few concerns that I'm wondering if anyone might be able to offer advice or support for:
First, after what I'm reading on the Net and recalling from various newscasts (both local and national), MRSA is a pretty big deal. Was she contagious when we all thought she just had a simple diaper rash and a few boils?
Next, tomorrow is day 10 of the antibiotic, and the open wounds from the first visit (the lancings) have improved some. They are scabbing over and are not open and oozing anymore. But they are still there, and now Mom is wondering if she might be developing new sores. But the baby is sooo happy and normal-acting!
Also, what can we expect in the future for her? Is this like herpes or athlete's foot; that is, something that will always be with her and she might have flare-ups from time to time? Is the "baby-diaper-rash" type of MRSA different than the awful skin-eating, kill-you-in-36-hours stuff I've been reading about on the Net?
Lastly, what questions should we be asking the pediatrician? I'm really surprised they just treated this like nothing more than an ear infection or typical cold, "Take this and call if it's not better." They gave absolutely no instruction at all about transmission, prevention or what to expect from this.
Sorry for the length. If there's anything I haven't been clear about or if there's anything that our family must know that we obviously don't from this post, please, please let me know. We're a very close family and absolutely in love with this child. We want to do everything humanly possible to keep her healthy.