<s>[INST] I am a 35 year old female and I have recently discovered a red line under one tooth on my gum. What could this be? I can not get in to see my dentist until next week. I am very worried about this and cant help but think this is some type of oral cancer. Please help!! [/INST] Hi, i went through your queryReasons for red line under the tooth can be many but considering your agent could be due to Dental abscess, It could also be due to injury to your humor sometime it can be caused due to hormonal changes toot present with limited amount of information can 1. Apply ointment TESS twice daily 2. Do warm Saline Gargles 3. Maintain Oral hygiene by brushing twice daily Hope this helps. </s>