Gave my first blowjob and was forced to swallow, how do I get the taste and feeling out of my throat?

Idk if its normal but the cum made me gag and I just kinda forcefully swallowed it to end the experience. Now I feel sick and my throat feels weird making me wanna vomit. I've drank water, soda, and eating an ice pop right now. It just wont go away and it feels weird.