Help!!!exremly urgent !!!!

[Aaran]

Okay so , I went to the pet store for food today and normally aaran feeds frozen to his snakes but they had no frozen so i bought live and i gave a large rat to one snake and she attacked it but the rat fought back . Now she has alot of and bites missing scales a large borwnish spot on here head and she was bleeding very midly she also is peeling like shes sheeding but shes not . Now i know snakes are good healers so im not worried to much about the bites but she was making a strange puffing cracking noise after it . I cleaned her with anti-bacterial soap and water but i dont know what else to do .