An Update on My Roommate's Mother's Condition

When I last heard, my roommate's mother, who has had cancer, has been doing a lot better. She has recently gotten chemotherapy and seems to be recovering. I recently remembered a Tibetan Buddhist practice that maybe could help her if ever she still needs it: the Medicine Buddha practice.
The Medicine Buddha is a Tibetan Bodhisattva believed to be able to heal people when his mantra is practiced. The Medicine Buddha Mantra for Healing goes:

Bhagawan, with equal compassion for all,

whose name when just heard dispels the lower realm's suffering,

dispeller of diseases and the three poisons (ignorance, hatred and attachment),

I prostrate myself to the Medicine Buddha, Lapis light

Tadyatha om bekhandzye bekhandzye maha bekhandzye radza samudgate svaha.

–Tadyatha means "like this" in Tibetan.  

–Om is made of of the three pure sounds that signify body, mind and speech.  Bekhandzye means "eliminating pain."  

–Bekhandzye bekhandzye maha refers to the path to enlightenment: the ultimate medicine.

–Radza means "king."

–Samudgate means "who has come forth."

–Svaha means establishing a foundation in the heart: the blessing, the devotion from which realization arises.

"If one meditates on the Medicine Buddha, one will eventually attain enlightenment, but in the meantime one will experience an increase in healing powers both for oneself and others and a decrease in physical and mental illness and suffering." —Lama Tashi Namgyal