Welcome to the forum Nicola. Well.. i guess u r talking about the bumps around your mouth, correct me if i'm wrong... anyway few questions..
How does it feel? itch, pain, burning and tightening sensation?
Have u used any steroids creams recently or in the past years? knowingly or unknowingly? before or after the lesion?
Do u remember using nasal steroids or any other steroid inhalers.
What toothpaste do u use? does it contain fluoride?
Have you experienced worsening of the area just before menstruation?
Are you on any contraceptives?
Please do reply the above questions
Thanks