Explaining a gap after caregiving or layoff after 3 years as a production planner

I took time out to care for a family member after working as a production planner. It has been weighing on me all week. I am nervous about being filtered out. What do you say in interviews?

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

I listed the volunteering and course under the same dates and kept the explanation to a sentence in the cover letter.