I have been using baking soda and probiotics made into a paste, sometimes adding natural raw sea salt. I had been using water, but now I'm trying it with Apple Cider Vinegar. This is on a case of MRSA I've been struggling with for months and heavy antibiotic only made it worse. The natural remedy seems to be working, unfortunately I got two new boils recently in another area. I find that washing with antibacterial wash only spreads it. Hopefully this will clear up soon, I'll keep the site posted.
Apple Cider Vinegar and Baking Soda
I found that baking soda and vinegar made into a paste applied to a boil helps draw the infection out