Hi, welcome to the forum. Sorry to hear about your relative. I know someone in my family who did not make it after she had cancer.
You can place a healing request if you want in the Healing Request section.
I think you can send your thoughts to that person in the meantime. I think all you really need is for the person to be able to receive it.
All the best. i hope that the person is receptive to reiki healing.
Sorry if I was not of much help.
Starjasmine