Impetigo
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| Impetigo Classification and external resources | |
| ICD-10 | L01. |
|---|---|
| ICD-9 | 684 |
| DiseasesDB | 6753 |
| MedlinePlus | 000860 |
| eMedicine | derm/195 emerg/283 med/1163 ped/1172 |
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Impetigo is a superficial skin infection most common among children age 2–6 years. People who play close contact sports such as rugby, American football and wrestling are also susceptible, regardless of age. The name derives from the Latin impetere ("assail"). It is also known as school sores.
Transmission
The infection is spread by direct contact with lesions or with nasal carriers. The incubation period is 1–3 days. Dried streptococci in the air are not infectious to intact skin.
Diagnosis
The diagnosis is made based on the typical appearance of the skin lesion.
Common Causes
Impetigo is usually caused by Staphylococcus aureus, it may also be caused by the same streptococcus strain that causes strep throat, Streptococcus pyogenes.
According to the American Academy of Family Physicians - "Nonbullous impetigo was previously thought to be a group A streptococcal process and bullous impetigo was primarily thought to be caused by S. aureus. Studies now indicate that both forms of impetigo are primarily caused by S. aureus with Streptococcus usually being involved in the nonbullous form"[1]
Scratching may spread the lesions.
Signs and symptoms
One or more pimple-like lesions surrounded by reddened skin. Lesions fill with pus, then break down over 4–6 days and form a thick crust. Impetigo is often associated with insect bites, cuts, and other forms of trauma to the skin. Itching is common.
People who suffer from cold sores have shown higher chances of suffering from impetigo. Those who normally suffer from cold sores should consult a doctor if normal treatment has no effect.
Physical Examination
Skin
Treatment
Topical or oral antibiotics are usually prescribed.
Treatment may involve washing with soap and water and letting the impetigo dry in the air.
Many general practitioners choose to treat impetigo with bactericidal ointment, such as fusidic acid (Fucidin) or mupirocin (Bactroban), but in more severe cases oral antibiotics, such as flucloxacillin (e.g. Floxapen) or erythromycin (e.g. Erythrocin) or Dicloxacillin are necessary.
It is very important to remove the crusts before applying ointment, because the bacteria that cause the disease live underneath them.
See also
References
- ↑ Stulberg DL, Penrod MA, Blatny RA (2002). "Common bacterial skin infections". American family physician 66 (1): 119-24. PMID 12126026.
- ↑ http://picasaweb.google.com/mcmumbi/USMLEIIImages/photo#5089143260205854098
- ↑ http://images.google.com/imgres?imgurl=http://lh3.google.com/_p163cKQmQ3k/RqBEn-ukrPI/AAAAAAAAAY8/v2CX9vPz7B4/s800/roth-spot%2B(white-centered%2Bhemorrhage%2B-%2Bendocarditis).jpg&imgrefurl=http://picasaweb.google.com/lh/photo/uugpiqwnGqw04cE42LS_-g&h=262&w=360&sz=19&hl=en&start=19&um=1&tbnid=F2wEexJaxk3GEM:&tbnh=88&tbnw=121&prev=/images%3Fq%3DEndocarditis%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DN
External links
de:Impetigo contagiosafr:Impétigoid:Impetigo nl:Krentenbaard no:Brennkopperfi:Märkärupi sv:Impetigo
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
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