How do I handle a long gap on my résumé? after 15 years as a sales associate

My résumé shows a gap from a layoff and some health issues. There are 15 people counting on me, so I am trying to be careful. I am nervous about being filtered out.

Thanks for writing this out. I went through something close to it 13 months ago, and it got easier once I kept a simple log of every call and form.