<human>: Had to have 3 cavities fixed on my upper right side in the back of my mouth. I HATE going to the dentist so I was nervously joked about how much I hated needles and assured me I wouldn't feel a thing. He went to numb me and after sticking me a few times walked out of the room to wait for it to kick in. after about 30 seconds the dental assistant loudly says "Oh Lord" and runs out of the room to get the Dentist. He comes in, looks at me, and goes "Oh Shit!"...I was confused until I reached up and touched my face. I had a knot the size of a golf ball to the right of my nose. just under my cheek bone. He said it doesn't happen often but a hematoma had formed in my face due to where he stuck his numbing needle. I ended up not getting any work done as my face contented to swell until it pushed my lower eye lid up to the point of impairing my vision. He gave me an ice pack and sent me on my way...I am even more afraid of needles and the dentist then ever.

Can you give me the gist of the text in a nutshell?
<bot>: Went to the dentist for a basic filling, ended up getting a huge hematoma in my face and left looking like I was horse kicked while still needing my fillings.