My little Monty needs your help!!!

Hi all! I'm Mitchell and who you see in the photos is my little angel, Monty. Monty has been my extremely loving side kick and undeniably my best friend his entire life. All 16 years of it. Those who have met him would agree that he's quite possibly one of the cutest, friendliest and flirtiest fur balls to grace our presence and despite his number of years, still has the energy of a kitten. He's recently come down with an infection that requires urgent care and medication in order to make a full recovery. Having recently just settled in to our new home, the find aren't immediately available to me to provide him with the professional urgent care he needs. I have let him down so I'm reaching out to you to see if you can help me save my little guy and get him back to his old self, ASAP. We would both be eternity greatful for any help we could get. Thank you so much in advance from the bottom of our hearts.