HUGS
I am very sorry - it never rains but pours, doesn't?
A brewing jaw abscess is really not something you want to take into the Easter bank holiday. I hope that strong antibiotics can slow it down or at least prevent it from coming up at the most inconvenient time.
Dylan developed a lump on the side of his jaw in December 2019 when we were bound for Christmas with my family in Switzerland. The abscess was like yours not developed enough to be lanced but thankfully 2 courses of zithromax and 0.5 ml of twice daily metacam not only got him through the holidays but actually got on top of the abscess altogether, even it knocked out his appetite completely for the last week or so. As he's still here at around 6 years by now, it was well worth the effort when Kim Maddock and I were trying to work out the best chance of getting him through the looming Christmas holidays even though Kim was rather sceptical.
This on the background of Hywel doing exactly that 6 years ago, coming up with a bursting jaw abscess while Simon was on Easter holiday. The next time he did it was on the eve of hub's first hernia op which meant that we would be without a car for the coming two weeks and while Nerys had lost mobility in her back legs and was just hanging by a thread in terms of needing pts or not. Not one of my best times! I truly feel for you; it can really feel so never ending when you are right in the middle of a lump of illnesses and/or losses.