Although Rey had never spent much time around animals, she knows enough to recognize when someone is bracing themselves for pain. It's not human body language, but it's telling nevertheless. They've already been banged up and bloodied pretty bad, but she wasn't sure how the animal would cope being manhandled.

Or... Rey-handled, for that matter. She's not very good at this. Not the first aid, but the bedside manner and being gentle. She doesn't talk while she works, not wanting to distract herself with conversation -- especially not for one that she wasn't prepared for. Working around Elleru's non-human form, before long Rey finishes with some bandages to cover the gel.

"That should do, for now. Doubt it's bad enough that you'll need to change them regularly." Because Rey's not sure she's up for that. Since this creature can, in fact, talk and comprehend the situation, it would be best to move on. Shouldn't let herself get attached, anyway.