I'm pretty sure i have perocoronitis... i think how you spell it..?

So hopefully I spelled this right..

Anyways, last night I noticed some pain where my left wisdom tooth is.. I'm 25 by the way and my wisdom teeth have been trying to come in for 7 years. This morning when I woke up, the gum above where part of my wisdom tooth is sticking out, is extremely swollen! very painful and irritating.

I read the symptoms of perocoronitis and I have pretty much all of those along with the swollen glands in neck. OKAY. so sorry for a long paragraph to start off with.. but I have a few questions for you if you know what im talking about.

1) I have antibiotics that were prescribed to me from a previous infection ( sinusitis) and I didn't take all of them.. shame on me.. can I take these to help with the infection before going to dentist next week?

2) I feel like im getting a head cold with this.. is this normal.. or maybe just getting a head cold because its spring??

3) Can this kill me?!? my head feels so stopped up and I don't want an infection traveling to my brain!

4) been washing my mouth out with vinegar ( it kills bacteria) Washing out with salt water and mouth wash... am I doing everything right??? is there more I can do??

Sorry for this HUGE essay.. just curious because this is the weekend.. so no dentist offices open in my area.. and I don't want this too be something serious and need to go to ER without knowing.. thanks for your help.