Conversation: The conversation between human and AI assistant.
[|Human|] small mark left after i chew my cheek. Befor it gets heal i chew that again. Now it healed very fast but it left a red dot like mark which i can feel with my tongue. It is been one month now the time i chewed it. I showed it my dentist and he priscribed hexigel. I have applied it for three days but no improvement. Please suggest
[|AI|]  Thanks for your query, I have gone through your query. The black or reddish mark on the cheek could be because of the bleeding that has occurred during cheek bite and which has clot. Or it can be melanin pigmentation secondary to cheek bite. don't worry it will not trouble you. If it is because of bleeding(ecchymosis) it heals in weeks. If it is pigmentation it might stay till you stop biting the cheek. I hope my answer will help you take care.