Eczema Treatment Care

My mum has had breast cancer 7 years ago, had had 12 lymph nodes removed from under her arm, has had chronic dermatitis on both hands 3 years after her radiotherepy, and was advised it may have been a reaction to tamoxifen. Later an allergy test was done, found to now be allergy to rubber when hands make contact…all very strange. She now has chronic lymphadema on both arms, she has been treated at a lyphadema clinic over 2 weeks, it went away then came back days later, attempts to follow excercises etc. She went for a PET scan and they found a suspicious lump in her chest a CT scan will answer our fear tommorrow. I just want some of these problems eased…please help.