BAD burn, swelling ankles and difficulty standing

I was at the beach four days ago and didn't put any sunscreen on my stomach and legs.  My stomach got a traditional red, itchy sunburn that's pretty uncomfortable, as did my upper legs.  My ankles, on the other hand, are a splotchy, deep magenta and swollen significantly.  The pain (and as of today, the itch) from my ankles is intense, and standing still for any length of time is impossible.  If I walk around a bit, it's pretty rusty at first, but my ankles free-up and I can move around decently (but I don't dare stop).  I think that maybe the movement of walking is pushing fluid out of my ankles.  

While this means that I can walk (I couldn't for more than a few steps for the first couple of days), an inability to stand still makes riding public transportation, using the restroom, and working difficult.  I happen to fall into a nifty insurance gap in that I make too much for state support and free clinics but thanks to bills, the only insurance I can afford is almost as bad as no insurance at all--can't make it to a doctor.  Does anybody have any thoughts?  Benedryl?  Aspirin and rest (it got somewhat better)?  Cortisone cream?  Aloe doesn't help the deep stuff and the swelling.

Bear in mind--I know it's not something I stepped in (my toes and the edges of my feet, covered in wet sand, were fine, it looks like I'm wearing purple spats).