baby pigeon sick

Hi....very urgent Baby pigeons are severely affected by canker,one eye cold,lost nearly 30 pigeon .Suggest me the best medicine and treatment to cure this problem.

so i found a young pigeon about ten or eleven days old. it was on the ground being chased and pecked on the the head by by two other pigeons. It seemed to have scissor beak and its top jaw was shorter than its bottom jaw. I was feeding it kaytee exact through a saryinge. it was warm about the...