my grandmother is probably dying soon following her third stroke. She is unresponsive and under Hospice care so we know the end may be near. This evening we notice that the roof of her mouth was black. What would cause this? Should we do anything?
Hello, There are two possible reasons. Once is that this may be a clotted blood, and other possibility is that it can be a fungal infection or a deposition of a stain due to Chat Doctor.  Hope I have answered your query. Let me know if I can assist you further.