Hi, Conne....just landed in Roscommon......don't put the Tea Tree Oil on her skin.......it's fine to put a few drops in a bath but not even watered down on skin that's fragile.
I don't know what to suggest in this case....we never found out anything that really worked for MrG in that situation.....and a friend is going throught the same now.
Tea Tree Oil is what I used to clean hospital rooms and wards to keep MrG infection free.....
Aloe Vera is worth investigating......I met a lady who bought the Aloe Vera drink to help her skin problems....but that wasn't cancer....x