I bit what seems like a hole in my tongue, on accident while chewing. It's bleeding and it hurts. Should I rush to the ER or will it heal on its own?

Tongue Trauma. Use some ice for bleeding. If not bleeding rinsing 4-6 times per day with warm salt water, NSAIDs OTC or Tylenol, (acetaminophen) and apply Ambesol. Small puncture wounds in the tongue usually heal without any treatment other than home remedies.