Are canker sores the result of a lack of B12?
In rabbits, not humans
stop putting your disgusting fingers in your mouth
>>9128983
canker sores aren't an infection, fucking underage retard.
>>9128990
>t-cell-mediated inflammatory immune response to antigens
it literally is, you mong
>>9128999
and vitamin B12 helps regulate the substance that causes such overreaction.
gotcha?
>>9128876
I've found pretty reliably that I get cankers from eating too much candy. I stopped doing that like... 40 years ago, and I've not had any since.