I am a cancer survivor but not Hodgkin's. You could send her her books, candles, body lotions and bath products. Some hard candy because your mouth gets dry with chemo. At least mine did. Candles always make me feel relaxed, and I love body lotions and bath products. Just don't get her shampoo as she may loose her hair during chemo. I pray she does well with chemo. God bless.
A warm, soft throw rug, for when she is having treatments or resting, so she feels like you are sending her hugs.
Moisturising lotions ( treatments often leave your skin dry)
Hard candy (lemon flavour is good) , grown up ones so she doesn't have to share with children, in a small tin so it is easy to take with her.
Book by a favourite author, or a book voucher.
MP3 player stocked with favorite music.
Beautiful scarf (I was given a gorgeous tie-died silk one that was quickly a favorite)
Vouchers for services (ironing, housecleaning, babysitting, massage) to give her a break.