Predisposing skin conditon e.g. ulcers, pressure sores, trauma, lymphoedema
Clinical features
Generalised swelling usually seen in the legs
Macular hot erythema with ill defined margins that is often spreading
Fevers, rigours and nausea
Investigations
Usually clinical diagnosis
If there is an atypical presentation, the patient is very unwell or there is failure to respond to treatment, cultures from possible points of entry may be valuable
Blood culture and swabs and culture of any blister fluid may also be helpful, usually in those patients where the diagnosis is in doubt
Management
General
Rest, elevation, analgesia, splint
Mark the area of erythema to aid in detection of rapidly spreading cellulitis
