These organisms are able to produce toxins which promote their virulence which leads to the inflammatory response seen in orbital cellulitis.
en.wikipedia.org Diseases that affect blood circulation in the legs and feet, such as chronic venous insufficiency and varicose veins, are also risk factors for cellulitis.
en.wikipedia.org Sometimes the infections are relatively limited (such as a stye, boil, furuncle, or carbuncle), but other times they may spread to other skin areas (causing cellulitis, folliculitis, or impetigo).
en.wikipedia.org Therefore, empirical therapy for significant cellulitis often involves dual-therapy to cover both staphylococci and streptococci, using either penicillin or ampicillin in addition to flucloxacillin.
en.wikipedia.org Usually drainage occurs via the periodontal pocket, or else the infection may spread as a cellulitis or a purulent odontogenic infection.
en.wikipedia.org