Thanks for asking the query,
A complete physical evalaution is required based upon which treatment will be decided.
As it appears to be normal i would suggest you to take
-lukewarm saline rinses 3-4 times a day.
-take antiseptic mouthwash rinses.
-quit the habit completely forever.
If the symptoms still persists visit to a Oral Surgeon and get the checkup done.
Hope you find this as helpful,