Headphone Jack iphone 4 HELP

Okay, I got water in my headphone jack so i got a bit of tissue and poked it into the port with a hair clip to dry it.. Then it got stuck so I used a safety pin to pull it out.. There was still a little piece in there so I poked the pin in and then i took it out.. A puff of smoke came out of the headphone jack hole thing and the tip of the pin was black.. The port smells like smoke now??.. Any ideas?? I'm scared incase it goes on fire