Gifting a massaging+ heating pad to grandma who is a colon cancer patient. Doctors/Nurses is this good gift?

Gifting a massaging+ heating pad to grandma who is a colon cancer patient. Doctors/Nurses is this good gift?
I think It's an incredibly thoughtful gift. I don't know how far advanced Grandma's cancer is, but I can tell you that if she has to lay down a lot, or if she's taking chemotherapy, anything that makes her more physically comfortable is a good thing. I'll keep her, and you in my prayers.
I need replies from doctors/nurses, as I need to know if the massaging and heating pad won't harm her body. This pad can basically be used to massage back, legs, hands etc. The heat has on of settings also.

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