What are some good ways to help out a couple with a sick infant?

I have this coworker who has a 6 mth old with seizures. She's been missing work to take the baby to the hospital for so many tests. A friend of ours helps out here and there by taking care of her 2 yr old, but I'm not good with kids, lol. I want to know what I can do to show her my support. I call every now and then but it's just the same thing, he's not well. I'm thinking of maybe getting her a gift card somewhere or buy her some relaxing bath crystals..maybe bring some food over..I don't know..she doesn't have family here..