Breast to bottle difficulties! Help please!

Hello, I’m having troubles with putting my son on a bottle. When he was born, he took the bottle fine as well as my breasts. He’s almost 6 months and I made the mistake of exclusively breastfeeding for 2-3 months and now he’s disgusted with having a bottle near his face.

I’ve tried feeding him when he isn’t overly hungry, he would have the nipple in his mouth, but won’t suck or swallow the milk that drips into his mouth.

I’ve tried using freshly pumped milk, but still will not accept it.

I’ve tried different bottles, I’ve tried having my significant other feeding him, but he just doesn’t accept it.

Help! I have oral surgery in a week and I was told to pump and dump for 8-12 hours afterwards 😓