About a week ago I noticed my young rooster not chasing the ladies like he usually does. I didn't see anything wrong with him upon inspection at first - he's eating and drinking regularly and he is "getting some" from the ladies, but not nearly as aggressively. But after a few days I noticed swelling under his eye and he was squinting on that side. I felt it and it was hard. I researched on the forum and didn't find anything having to do with anything like this, so I contacted an old contact that we bought chickens from in the past and he said that from what he knew it happens sometimes and no one really knows what causes it, though it is suspected mosquitos are the cause. He reccommended Terramycin and keep an eye on him. The instructions are vague on the package, it says to give continuously and continue for 7-14 days. I wasn't sure what they meant by continuously, and the chicken contact warned me of overdosing my chicken so I started out with a couple of teaspoons the first day. Within 24 hours, the swelling reduced some, and I thought I was doing good. But the next day it was back to the way it was, and within 48 hours he can't even open his eye and it's so swollen that I'm afraid the skin will break!!! I brought him in the house and put him in my garden tub in my bedroom. He's eating and drinking fine. I put the Terramycin in a bowl of water so he can drink freely and he can't have any access to any pure water supply. Does anyone have any experience with this???? what should I do?? am I doing the right thing???