I have a question on what to do about this tate in my mouth.?

Ok. So I ate a packet of Pop Tarts from a vending machine. I ate them, but they didn't taste very good. I didn't finish them all. I started spitting, and once I got home, I brushed my teeth and used Listerine to try and get the taste out of my mouth. That didn't work because, when I went to go eat something, it tasted just like the bad-tasting Pop Tart. I spit some more, then went to brush my teeth very well and gargled and used some Listerine. I went to go eat again, then threw up because I had the bad-tasting Pop Tart taste back. I then brushed my teeth VERY well and REALLY used my Listerine for a THIRD time. I ate some chips and cup of noodles after that, and felt better. But now I'm just sitting here, and the taste of the bad-tasting Pop Tart is back. WHAT SHOULD I DO??????????