Aug 26, 2020 - 03:40 PM
If you make mention in your cover letter about your sickness-related work history gap, you do not have to go into great detail about your sickness. Just state that you were out of work due to an illness and that you are now ready to get back to work. Mentioning the sickness-related work history gap in your cover letter is not a requirement, though. Most recruiters and hiring managers who spot work gaps in resumes will likely just presume that you were out of work due to a personal/family reason, or because you were laid off and experienced difficulty with finding new work, etc.
If you land an interview without mentioning the sickness-related work history gap in your cover letter, the recruiter or hiring manager might ask you about the reason for the gap during the interview. Answer honestly but don't dwell for too long on the topic (it's not likely that the recruiter or hiring manager will want to dwell on the topic for too long anyway). Steer focus back to talking about how you have the skills and talents necessary for the job you are trying to capture.
To learn more about handling work history gaps in your resume, check out these resources: