Lady's Dental Abscess Surgery

Our dog Lady has a Dental abscess that needs an extraction surgery ASAP.  She's had the "lump" for a while- we were told by a vet a while ago that it wasn't anything to be worried about and it would just die off on its own and would be painless. That has NOT been the case. The last couple of months,  it's been getting worse. It's been causing her severe pain, its incredibly swollen and bleeds a LOT daily. I took her to the Vet, the vet would only be able to do a small quadrant/spot cauterization procedure. But that wouldn't heal correctly with how much of her mouth is being infected.  SO, We were referred to a Doggie Dental Specialist. And that doc wants to: Do bloodwork (to check for any blood infections, see what her vitamins levels are too, etc), get X-rays of her chest and head (to see and make sure there's no infection there), and lastly, a Biopsy of a chunk of the lump (to make sure its benign). ¹ The Vet, that we see yearly, has prescribed her meds until we can get something figured out for her. A strong antibiotic, and some lite pain meds.  After they get the chunk they need for the biopsy, they will remove the mass as much as possible and then reconstruct her jaw/ teeth as much as they can.  I'm not the begging type, but I'd do anything for my dog. She's my best friend and she doesn't deserve to suffer and be in pain. She's always so loving and happy and sweet!  Please PLEASE, help me help her! Even the littlest amount adds up!  Thank you for your time help! We love you all!