Q.Why Do My Hellebores Have Leaves That Are Dry Up? What Should I Do To Encourage Heathy Plant Growth?k
I have no images that I can can show you.

Certified GKH Gardening Expert
Unfortunately, without a photo I am unable to assess any damage to the plant. There are many things that can cause these symptoms.
What I can do is link you to an article that will help you with proper care. This will be the first step. Once proper care is provided, then you can begin to diagnose any disease outside of those factors. This article will help you with their care:
https://www.gardeningknowhow.com/ornamental/flowers/hellebore/growing-hellebores.htm