Reddit mentions of Gold Bond Ultimate Skin Protectant Hand Cream for Eczema Relief, 2% Colloidal Oatmeal, 8 oz.

This is my favorite body lotion, it makes my skin noticeably softer: https://www.amazon.com/Gold-Bond-Ultimate-Eczema-Protectant/dp/B00GIHMOGW?th=1

edit: oops, I posted the wrong link. I actually haven't used the Gold Bond Cream, although I suspect it's good. Here's the link to the lotion.

Alpha Hydrox has a good body lotion that's exfoliating and softens the skin well: https://www.amazon.com/Alpha-Skin-Care-Fragrance-Free-Paraben-Free/dp/B01FX1FAH8/ref=sr_1_1_sspa?keywords=alpha+hydrox+body+lotion&qid=1558292306&s=hpc&sr=1-1-spons&psc=1

Layering over the lotion with a thick cream can help too: Any cream will do, but I've seen great reviews for this Aveeno Cream: https://www.amazon.com/Aveeno-Emollients-Fragrance-Free-Moisturizing-Extra-Dry/dp/B0067H6G26/ref=sr_1_1?keywords=aveeno+cream&qid=1558292270&s=hpc&sr=1-1

Oils can help too, but they're messy. I've used Coconut oil, grapeseed oil, and jojoba oil.

user onceiwaskingofspaing brings up a good point, there are several body washes and soaps that are drying. Long showers/hot water will dry out your skin too. It's also important to put on lotion as soon as you get out of the shower, to prevent trans-epidermal water loss (water evaporates, leaving your skin drier).

This looks like my skin! I recommend Gold Bond's Eczema lotion. You could probably use another brand, but my dermatologist gives me samples of this specific one so it's what I'm used to.

https://www.amazon.com/Gold-Bond-Ultimate-Eczema-Protectant/dp/B00GIHMOGW/ref=sr_1_2_a_it?ie=UTF8&qid=1487601199&sr=8-2&keywords=gold+bond+eczema+relief+lotion

Gold bond also makes one, but I've never tried it.

https://www.amazon.com/Gold-Bond-Ultimate-Eczema-Protectant/dp/B00GIHMOGW

I have a similar problem and my husband has been very supportive. If he sees me scratching he will take my hands and hold them. He also draws oatmeals baths for me and sits with me while I soak.

I've used a lot of products over the years that did not help with my itching but I will recommend these two as excellent and worth a try:

Aveeno Bath Oatmeal

Goldbond Eczema Relief Lotion

The Goldbond is the best eczema lotion I have ever used and does not have steroid in it.

Make sure she sees a doctor as soon as she can to find out her triggers and eliminate them from her environment. Mine turned out to be animal dander, cleaning chemicals, and perfumes/fragrances in soaps. It required quite a lifestyle change but now I only have rate flare ups that I can usually nip in the bus by not scratching. Good luck.