Does it sound like my wisdom tooth is infected?

I went to an oral surgeon recently, and he poked around at the back of my mouth to check on my wisdom tooth since it's been swollen in the mornings when I wake up. Some fluid drained out of it, but he said it was okay-- as in he didn't say it was infected, just "at risk" for infection. I'm getting it out in two weeks (had to wait because I was going out of state) but I'm wondering now how to tell if it has gotten infected. It just is SO swollen in the mornings when I get up-- increasingly so each day. This morning I couldn't really completely close it back there until it went down a bit. The area is also a little strange-colored ever since he drained it (like darker than before where the tooth meets the other one under the gums...) .. The thing is though, it doesn't really *hurt* ... if it does, it's incredibly mild... it just feels like a lot of pressure. It also isn't bleeding much... maybe a teeny amount.

I also have been using PerioRx antibacterial mouthwash since I coincidentally need to be using it for a 2-part gingival cleaning, so my mouth is pretty darn near sterile (I don't even taste anything or have bad breath in the morning at all after using it the night before) ... Can my gums be this swollen back there and still NOT infected?? How would I know if it became so, or if I needed to somehow see an emergency doctor while being out of town?? Thanks.