Sores or swelling in the tissue in the mouth (mucositis) can occur because of cancer treatment, other illnesses, certain medications, or poor dental health. Patients with MDS we will undergone bone marrow transplantation may experience graft-versus-host disease in the mouth that may be painful.
There are a number think she can do to improve oral health and reduce pain associated with mucositis.
MDS Foundation: multisite-demo.com
Cancer.net: Mouth sores or mucositis
Cancer Care: Mouth sores
American Cancer Society: Mouth sores https://www.cancer.org/treatment/treatments-and-side-effects/physical-side-effects/mouth-problems/mouth-sores.html
Oncolink: Mucositis https://www.oncolink.org/support/side-effects/mucositis