Ar 28 Medi, cyhoeddodd yr Adran Iechyd a Gofal Cymdeithasol ganllawiau ar gyfer gweithwyr gofal iechyd ynglŷn â'r mater gyda'r cyflenwad. Mae'r canllawiau hyn, a luniwyd gan arbenigwyr ar alergeddau o'r Gwasanaeth Iechyd Gwladol (GIG), yn darparu cyngor ar gyflenwadau a rheolaeth glinigol.
On 28 September, the Department of Health and Social Care (DHSC) issued guidance for healthcare professionals about the supply issue. This guidance, which was drawn up by NHS allergy experts, provides supply and clinical management advice.