If you are concerned about your symptoms, they are worsening, or you can no longer manage at home, seek medical advice by contacting your GP or NHS 111.
Os ydych yn pryderu am eich symptomau, os ydyn nhw’n gwaethygu, neu os na allwch ymdopi gartref mwyach, ceisiwch gyngor meddygol drwy gysylltu â'ch meddyg teulu neu wasanaeth 111 y GIG.