Hope you have your first aid cert up to date. Looks like you are needing it today. Poor little bubba baby. That ear has got to be tender. I bet he didn't let you put ice on it!
That is kind of odd looking... almost like nerve sheath. At first I was going to say to lance it, but probably better to leave it, other than soaking. Out here, foxtails cause that kind of problem every summer, and I usually let the dogs take car of it, let them lick if it doesn't turn into chewing. The vets don't like that, but it has always worked for me. If wound is draining, they will keep it open and draining instead of needing a tube inserted. But I'm not a vet!!!
You'd better believe no ice... I put my water cup against right after it happened and you should've seen him dancing around. He'd whimper and whine every couple minutes "oh it hurt so bad, I just need a bandaid." Fine, I gave him one and not another peep.

So for the paw, you think unwrapped?