You and your employee are in a unique situation, but there are a few choice, neutral phrases that you can say to help keep communication open and reassert your position as pro-active and involved management. 

1. I'm sorry that you’re going through this.

2. If you need to talk, I’m here for you.

3. We’ll figure out what we need to do about your work duties - together.

4. Tell me what we can do to make your workload more manageable.

5. Let’s talk regularly to see how you’re doing.