Information Source for Cellulitis
Cellulitis is an acute inflammation of the connective tissue of the skin, caused by infection with staphylococcus, streptococcus or other bacteria, such as cellulitis - streptococcal - Erysipelas is a type of cellulitis, which is a skin infection generally caused by group A treptococci.
Causes, Incidence and Risk Factors of Cellulitis
The skin normally has many types of bacteria living on it, but intact skin is an effective barrier that keeps these bacteria from entering and growing within the body. When there is a break in the skin, however, bacteria can enter the body and grow there, causing a bacterial skin infection and skin inflammation. The skin tissues in the infected area become red, hot, irritated and painful.
Cellulitis is most common on the face and lower legs, although skin on other areas of the body may sometimes be involved.
Risk factors for cellulitis include:
- Insect bites and stings, animal bite, or human bite
- Injury or trauma with a break in the skin (skin wounds)
- History of peripheral vascular disease
- Diabetes - related or ischemic ulcers
- Recent cardiovascular, pulmonary, dental or other procedures
- Use of immunosuppressive or corticosteroid medications
Symptoms of Cellulitis
The following are Symptoms of Cellulitis:
- Localized skin redness or inflammation that increases in size as the infection spreads
- Tight, glossy, "stretched" appearance of the skin
- Pain or tenderness of the area
- Skin lesion or rash:
- Sudden onset
- Usually with sharp borders
- Rapid growth within the first 24 hours
- Warmth over the area of redness
- Other signs of infection:
- Chills, shaking
- Warm skin or sweating
- Muscle aches and pains
- General ill feeling
Additional symptoms that may be associated with this disease:
- Nausea and vomiting
- Joint stiffness caused by swelling of the tissue over the joint
- Hair loss at the site of infection
Signs and Tests for Cellulitis
During a physical examination, the doctor may find localized swelling. Occasionally, lymph nodes can be detected near the cellulitis.
Tests that may be used:
- A CBC may show an elevated white blood cell count, and indicates a bacterial infection.
- A blood culture may be performed if generalized infection is suspected.
Treatment for Cellulitis
Cellulitis treatment may require hospitalization if it is severe enough to warrant intravenous antibiotics and close observation. At other times, treatment with oral antibiotics and close outpatient follow-up is enough. Treatment is focused on control of the infection and prevention of complications.
Antibiotics are given to control infection, and analgesics may be needed to control pain.
Elevate the infected area, usually higher than the heart, to minimize swelling. Apply warm, moist compresses to the site to fight infection by increasing blood supply to the tissues. Rest until symptoms improve.
Cure is possible with 7 to 10 days of treatment. Cellulitis may be more severe in people with chronic diseases and people who are susceptible to infection.
Complications of Cellulitis
- Tissue death (gangrene)
- Sepsis, generalized infection and shock
- Meningitis(if cellulitis is on the face)
- Lymphangitis - an inflammation of the lymph vessels
Calling your Health Care Provider
Call your health care provider if symptoms indicate that cellulitis may be present.
Call your health care provider if you are being treated for cellulitis and new skin infection symptoms develop, such as persistent fever, drowsiness, lethargy, blistering over the cellulitis, or extension of the red streaks.
Prevention of Cellulitis
Avoid skin damage by wearing appropriate protective equipment when participating in work or sports. Also, clean any breaks in the skin carefully and watch for redness, pain, drainage, or other signs of infection.
Finally, maintain good general health and control chronic medical conditions. A body that is healthy can more easily fight bacteria before they multiply and cause infection, while a body that is run down has less protection against infection.
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