My friend brought this kitten from her neighborhood that was being attack by dogs. Sadly they didn't get there early enough to rescue the momma or her littermates. The kitten is suffering from a broken leg by the looks of it and a small bite mark on her other back leg, causing a slight inflammation and pus to begin forming. I cannot take her to the vet due to not having the money and my parents can't pitch in due to their own limited money. Are there any medicines that I can give her to help with the infection and the inflammation?