How do I handle a long gap on my résumé?

My résumé shows a gap from a layoff and some health issues. Any experience at all would help. I am nervous about being filtered out. How did you handle it on your résumé?

Keep your skills fresh and mention anything recent. It shows momentum.

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.