As I understand it Hankunamatata, the OP isn't asking if it is still OK to go on an already booked holiday - which is what I initially thought she was going to ask, and the answers would have still been, "no sorry @melonhen, but hopefully they will give you a full refund, or at least change the dates of your holiday" - the OP is actually asking if it is ok to make a new booking at a holiday resort, so that they don't have to be at home while the treatments to their soft furnishings have time to work (and probably dry out)?
Having to go through all of that fuss because of an invasion of Scabies, must be frustrating, even annoying, and I'm sure that most of us would be thoroughly pissed off fed-up, but that does not give her the right to be so selfish, and potentially a bringer of harm to others, who are probably trying to have a recuperating holiday themselves.
OP, what you could do is book a holiday to look forward to in a few months time, one which would hopefully give you all a lift to your spirits now, while thinking about it. Ah, I nearly forgot to say, that I do think that what you are planning is actually illegal, and it is definitely in the small print of any holiday resort in this Country, to not knowingly bring any contagious diseases with you.