I have only just seen this Jane.Im so sorry.I really dont know what to suggest except if she Is on soft bedding would It be possible to let some air get to her feet once the skin has heeled.Its such a shame that the pressure cant be taken off her back feet.Im glad she is happy in herself at least thats a positive sign.I really hope you can find an answer to this.Sending healing vibes Lady Lydias way and a big hug for you.