Os yw wedi bod yn dri mis ers eich ail ddos ac nad ydych yn credu eich bod wedi derbyn llythyr, galwad ffôn neu neges destun ar gyfer apwyntiad brechlyn atgyfnerthu, cysylltwch â'ch bwrdd iechyd lleol. Bydd ganddynt fanylion ar eu gwefan hefyd am beth i'w wneud os ydych chi'n meddwl eich bod chi wedi cael eich methu.
If it has been three months since your second dose and you do not believe you have received a letter, call or text about a booster appointment, please contact your local health board. They will also have details on their website on what to do if you think you have been missed.