Abscess

An abscess is a pocket of infection that contains pus. These infected areas are surrounded by a membrane, so that they are similar to a thick-walled balloon filled with fluid. Abscesses may be small or large, single or multiple. An abscess in the skin feels hot, looks red and swollen, and is painful.
Abscesses often result from puncture wounds, scratches or bites. Sometimes the skin surface seals quickly, trapping bacteria below the skin surface. These bacteria produce the abscess.
Important Point of Interest
Abscesses may require both surgical and medical treatment, depending on their size, location, stage of development, and effect on the animal. the doctor will advise you if surgical treatment is needed.