Daughter bit almost through her tongue.

My poor little girl fell down and almost bit right through her tongue, my heart stopped when i seen all that blood and the gash. She can't eat or suck on her sippy cup. I rushed her to the e.r only to be told they don't suture tongues and to make an appointment with our family dr. My heart is breaking seeing my baby like this. I wish I could kiss and cuddle the booboo away. Im not sure what to do, anyone else's Lil one have this happen? If so what did you do to care for it. How long did it take to heal? I was told it will heal quickly but as the day goes on its looking worse the gash is getting wider it seems..