Ooh-aye!!! Things have been kicking off down in the run!! There is a school of thought that a greater number of hens kept together may diffuse aggression, so with more birds to interact with, aggressive or dominant hens have more targets, and so spend less time picking intense fights with just one or two individuals and spread the aggression with far less impact. Not sure if this works or not, but you rarely see serious squabbles amongst Large flocks of hens. Of course this theory is only ok to test , if you have the space and time to care for large numbers of chickens, which most of us don't!! but I'm sure things will settle down in time Sue!
I wouldn't worry to much about Comb injuries, they always bleed profusely, and often look far worse than they actually are. In the bad old days when Males of certain breeds were dubbed, cockerels would resume service as normal, virtually immediately after having their Combs, wattles and earlobes removed with scissors or a Razor blade, and be completely healed in a few days, but it's always a good idea to have the wound powder or purple spray to hand as a precaution.