Non healing mouth sore : Dentistry
Hello, im 23 years previous male, non smoker non drinker 1 week in the past I discovered this canker sore on my mouth, it was once painful at contact https://imgur.com/a/UkgagbZ
After 1 week, the ache completly disappeared and the yellow apparence subside BUT it is nonetheless purple and feature some Grey issues on it Picture : https://imgur.com/a/cq31Gu3
Is it standard? Is it healing?