Vitamin deficiency oral ulcers?

Patients with oral ulcers may be caused by vitamin deficiency, such as vitamin C deficiency, vitamin B1 deficiency, vitamin B2 or vitamin B6 deficiency, vitamin B12 deficiency, etc. These are likely to cause oral ulcers. Therefore, we can supplement this vitamin to patients, so vitamin c can be supplemented, vitamin b1, b2, b6, b12, etc. can also be supplemented with vitamin b tablets, can also eat this vitamin c rich, vitamin b rich fresh vegetables, or fresh fruits, which is a positive effect on the treatment of oral ulcers caused by vitamin deficiency.