Hi S.,
I have a friend whose daughter had this not too long ago & I shared your questions with her and this is what she said:
My daughter had what her pediatrician called a “form of staph” right before her first birthday (it just looked like a really bad diaper rash) & just had us put an antifungal cream. It went away but then came back with more of a blister look rather than a diaper rash so she diagnosed it MRSA & prescribed her another cream. We went over the same routine of antibiotics a few times, with her cysts getting so bad we almost had to have them cut open & drained. Her pediatrician kept saying “it was nothing, it would go away” but after the 3rd time of her almost having to go to the hospital, we decided to change pediatricians for a second opinion. The new doctor prescribed her an oral antibiotic a lot stronger than she had before (there were side effects but it literally got rid of the cyst within a day or two), made us bathe her with medical grade soap, we all had to wash our hands with it (anyone who came in contact with her) & we had to put a cream called Bactroban on the Staph, inside her nose & inside everyone’s nose that came in contact with her. It was a terrible experience with how much pain she went through & all the doctor visits, but since that treatment her outbreaks have been VERY minimal & she isn’t in pain anymore. That’s the best advice I could give! Good luck & I hope she gets better!!
I hope this was useful! :) all the best, M..