i'm sorry to hear that about your beautiful Burm.
when i got a new snake in w/ an RI, she was quarantined immediately and i kept her in a bare bones tub. i think u only have Kaiju but u might have to strip down your nice enclosure to just substrate, water bowl and hide. i would actually put her on paper substrate. u wanna clean everything to get rid of lingering bacteria. i would also bump up the temps a degree or two. do not raise humidity. keep it normal. high humidity w/o proper ventilation can allow more bacteria to fester. when u are at the vet, get a culture done so the vet can prescribe the best antibiotics. be prepared for administering injections.
good luck, keep us updated!