Oh dear, I would not be happy with my fellow FFA members. That was a serious mistake. Not only could the older poult have seriously injured your birds, it could have brought disease into your flock. That goes against every biosecurity principle out there. I would definitely report this to your FFA advisor.
Head and waddles and snoods always swell up terribly after turkeys fight. It typically takes a few days to a week for the swelling to go down. If the swelling is infected, or if there are injuries in other areas that cannot be seen because they are internal, then that is more serious. You need to keep them comfortable and eating during the healing time, and reduce any stress as much as possible. You may have to hand feed the one that's not doing well. You can try to give it some scrambled eggs with some of the turkey grower mixed in, or numerous other treats. My turkeys loved spicy rice with hot peppers when they were babies, so they can eat a lot of things. You may have to try different things to get the sick one to eat.
To be able to tell them apart, you can put leg bands on them. You can get ones that are commercially made, or you can make your own by using a different color zip tie on the leg of each bird. If you do that, it is VERY important to leave the tie loose enough for a little growth, but not so loose that it can get caught on things or slip down the leg and injure the toes. And you need to make sure that you check them every single week, no exception, and change them when they're no longer loose. Don't let the bands get even a little snug on the shank -- they need to stay loose or they can cut off circulation to the foot.
