It occurs to me that Lester doesn’t just have a buckshot wound to his hand, he’s got buckshot in his hand. We’ve never seen the exit wound. That’s why it’s so painful and that’s why it’s getting infected. Antibacterial ointment is not going to help. He needs to get that buckshot out. He’s not thinking straight, because he really does have a concussion, but if he doesn’t deal with it soon it’s going to become a very obvious piece of evidence that he was in the room when Malvo murdered the Chief.