Terrific that you are thru your 'active treatment' @JenD and can now look forward to getting your life back xx Maybe mention issue the throat to your Onc/Breast Care Nurse ...
I found that Difflam anaesthetic throat spray (with a long nozzle, so the spray gets to the back of the throat) REALLY helped me when I had a killer sore throat when I got Covid early this year.
https://difflam.com.au/product/difflam-plus-anaesthetic-sore-throat-spray/Rest up - Recover & Recuperate xx
Jen & @GorgyS - Consider contacting https://www.otisfoundation.org.au/directory to see if you are able to have a bit of a break in your state (there is often a few months wait - so it could be next year) ..... Wonderful philanthropic people make their holiday homes available to those recovering from their BC treatment, for a special break - you only need to take your food & clothes! You can take as many family &/or friends, depending on the number of beds available ;)
take care all the best for your scans & AIs xx