Hi @Pookie sorry to hear you have problems with cording post surgery. Your GP may be able to assist to refer you to a lymphoedema therapist to help manage the cording or the Australasian lymphology association also has a find a practitioner tool to locate a trained therapist in your area (link below). Do you have a breast care nurse you can contact for support and advice?
https://www.lymphoedema.org.au/the-register/find-a-practitioner/
You can also access allied health to help cover costs through a subsidised chronic health care plan through your GP Please see
https://www.bcna.org.au/resources/booklets-and-fact-sheets/#chronicmanagementplans