Explaining a gap after caregiving or layoff after 13 years as a dental hygienist

My résumé shows a gap from a layoff and some health issues. I have read a lot of threads here and could not find my exact situation. I have done some volunteering and a course during that time. 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 10 months ago, and it got easier once I kept a simple log of every call and form.