Discover how to craft a professional resignation letter due to illness. Linked below are templates for resignations and retirements.Please be certain that your letter is signed, dated correctly and addressed to your administrator. Customize and Download this "Employee Resignation Letter for Health Reasons". In this article, we'll give you practical tips, examples, and a resignation letter template to help you navigate the process with confidence and ease. And Thune isn't worried about ruffling Democratic feathers in the process.