Hi all, We recently started raising baby chicks which are about 1.5-2 months old now. We've noticed a few of them with bruises on their backs. They seem to be pecking at each other and striking blood. A few got infected. We are now going to check them daily and spray any bruises with hydrogen peroxide. For one or two that got infected, their backs started to look like the picture attached but now have a lump that is the size of a gumball. We are a small farm with no money and the vets around here charge outrageous amounts of money. Does anyone have any ideas on how we can treat this ourselves? A photo is attached of one chick before the lump started to show up. Thanks for any advice.