Can TNBC chemo cause recurring mastitis or could it be inflammatory breast cance...

This sounds incredibly concerning and stressful to be dealing with recurring symptoms after completing such an intensive treatment regimen. The fact that both the breast surgeon and oncologist are monitoring this closely shows they're taking the situation seriously, which is important given the initial concerns about inflammatory breast cancer versus mastitis. Since the symptoms returned so quickly after antibiotic treatment, bringing this back to the medical team's attention promptly would be wise, as they may want to consider additional testing or imaging to get a clearer picture of what's happening.