Hello There is a possibility that your teeth are not in a proper position due to which you accidentally bite while eating or while speaking that takes the form of an ulcer. So first of all you have to keep a watch on how frequently does it occur because if the frequency is more then you need to get consultation from a braces specialist or orthodontist and probably get alignment of your teeth done because the ulcers can lead to bigger problems. For the transient relief of pain or discomfort due to the ulcers you can use an ointment such as dologel CT for local application

Hello, there is no issue if you accidentally bite your lip.Ulcers generally heal by themselfs within a week or two so don't worry .If you are not having any underline health condition or allergy history then for pain and difficulty in eating food you can simply apply dologel on the affected area . You can also consult us online for any guidence we are here to help you.

Let me discuss this step by step : 1.Stress is one of the most common  cause of it. So I will suggest to , to practise mindfulness & positive approach towards life 2.for medication please share clinical photograph of the area in question for better online  consultation?

Hello dear Please be aware See continuous irritation from a tooth can cause recurrent ulcers and excess damage to tooth.definitely medications are required but the best cure is to stop the etiological factor and then apply medications.for further details you can consult me Regards

If this is happening accidentally and rarely, you need not do anything to stop this. In case this is happening frequently,  it can be due to abnormal teeth position. Get it checked from a dentist, if this is happening regularly. Usually these ulcers are painful,  but will go away by themselves.