This could be a blisters caused by the trauma you had. For the most part, , blisters such as blood blisters do not require special medical attention. They will resolve on their own. It is usually recommended to avoid popping the blister to prevent infection and disrupting the natural healing process. However, with you biting the blister, it may take a while for the bump to go away. Keep the area clean and try to avoid manipulating the lesion.
Take care and keep us posted