If you are an Irish citizen living in Ireland, you can renew your European Health Insurance Card (EHIC) online through the Department of Health website.
To renew your EHIC, you will need to provide your personal details, including your name, date of birth, address and contact details. You will also need to provide your National Insurance or Social Security number. Once you have provided all the required information, you will be able to submit your application for a new EHIC online.
It is important to note that the EHIC is only valid for five years and it is important to renew it before it expires. If you do not renew your EHIC before it expires, you will have to reapply for a new one.