Overseas with a failing root canal....should I be worried?

[bostonguy2122]

I'm in Ireland for my honeymoon (having a blast!) but a little concerned about a gum abscess related to a failing root canal that doesn't seem to be reacting to 500mg of amoxicillin 4 times a day...

I was diagnosed with a failing root canal by my endodontist last Tuesday, 3/7. This was after seeing my regular dentist a week earlier who put me on a 7 day prescription of amoxicillin that seemed to help with the inflammation and immense pain. It came roaring back before my endodontist appointment (with no pain but more swelling this time). Considering the proximity to my wedding day on that Saturday, 3/11 and subsequent trip to Ireland on Sunday (and with the area too inflamed for immediate action) the endodontist put me on a giant prescription of amoxicillin and scheduled me for a root canal re-treatment 2 weeks from today on March 28th (when I'm back in Boston).

Luckily, I'm in very little pain with this round of the infection. However, the pimple-like sore above my top right molar has only gotten bigger since beginning the latest antibiotic regimen. And this is with swirling hot salt water around my mouth 3 times a day and taking lots of ibuprofen. Of course I've been reading horror stories online about infections fatally spreading to other parts of the body and I'm quite concerned at this point.

I'm worried that putting this surgery off for so long could end up being really dangerous--and even more-so since the antibiotics don't seem to be helping. I'm 27 years old and in pretty good health, which means a spreading infection should be pretty rare? Am I over-thinking this or should I be rushing to the nearest clinic in Ireland to do something about it? Thanks in advance!!!