Oreo is critical URGENT HELP NEEDED

A rescue dog named Oreo who recently had a dental , and had the same day a swollen leg at the end of the surgery. Things have taken a sudden turn for the worse.
At first I and (the vet staff) couldn't figure out what the heck happened to his leg.
However, as treatment progressed it was apparent it was simply a co incidence and that Oreo had suffered a spider bite.
We suspect now (after his decline) a Black Widow!!
I have done alllllll I can do for this guy and over the course of 2 weeks and every antibiotic known to man and the necrosis advancing at an alarming rate, we had done daily laser treatments, debriding the dead tissue, saline and suger wraps, much like a burn victim....he is to the point where the culture came back as the deadly infection MRSA.
I have attached a link for more information if you wish to read it. But basically it is the same thing humans get in a hospital after a surgery and many people die.

http://www.petmd.com/dog/conditions/skin/c_dg_antibiotic_resistant_infections_mrsa%20

Even though you will see in the photos graphic photos......the necrotic tissue and in the additional photos some healthy tissue growth. With the diagnosis of MRSA and its resistance to antibiotics as well as being very contagious....with the culture FINALLY we have a diagnosis. So all previous antibiotics were obviously NOT working.
The summary is that the poor guy needs more daily surgery to clean and dress the wound, and it calculates out to about $200 a day for a minimum of 10 to 14 days with no known outcome. However, the rescue had to consider euthanasia BUT he had so much fight in him I just couldn't. So we decided that now the CORRECT antibiotic can be given we will give him time to fight.
In order to help keep costs down I have set Oreo up in our bathroom as to keep him isolated and quiet. I am also able to give him his much needed shots and oral pain killers.  I am cooking chicken for him to stimulate his appetite and since the medicines can upset his little tummy I need to make sure he eats a bland diet.

We desperately need funding to help the rescues veterinary costs. Please consider help us today! We will keep you posted on his recovery.

Visit   www.onemoredogrescue.com to see more about our Non Profit and look us up on Facebook too!

PLEASE be sure your pest control person sprays regularly around your house for Black Widows.....