<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have a white hole at the connecting line between my gum and lower lip. The area around it is swollen and tender. It also looks like it may be a cut. It is very uncomfortable, especially if I try to pull my cheek out to look at it. I have no idea what it is. Any ideas?  <response>: Thanks for using Chat Doctor. Read your query. The lesion described at the junction if the lower lip suggests the formation of an authors ulcer, which is very painful initially. I would advise you to apply McCoppin mucosal on the affected area two or three times a day. It should reduce by a week. For pain, take a paracetamol. Avoid spicy food and reduce stress levels. If still persistent, consult your local dentist. Hope this was helpful. Thanks and regards. 