Impetigo
| Impetigo | |
|---|---|
 |
|
| A case of childhood impetigo in a typical location around the mouth | |
| Pronunciation | /ɪmpᵻˈtaɪɡoʊ/ |
| Classification and external resources | |
| Specialty | Dermatology, infectious disease |
| ICD-10 | L01 |
| ICD-9-CM | 684 |
| DiseasesDB | 6753 |
| MedlinePlus | 000860 |
| eMedicine | derm/195 emerg/283 med/1163 ped/1172 |
| Patient UK | Impetigo |
| MeSH | D007169 |
Impetigo is a bacterial infection that involves the superficial skin. The most common presentation is yellowish crust on the face, arms, or legs. Less commonly there may be large blisters which affect the groin or armpits. The lesions may be painful or itchy. Fever is uncommon.
It is typically due to either Staphylococcus aureus or . Risk factors include attending daycare, crowding, poor nutrition, diabetes, contact sports, and breaks in the skin such as from mosquito bites, eczema, or scabies. With contact it can spread around or between people. Diagnosis is typically based on the symptoms.
Prevention is by handwashing, avoiding people who are infected, and cleaning injuries. Treatment is typically with antibiotic creams such as mupirocin or fusidic acid. Antibiotics by mouth, such as cephalexin, may be used if large areas are affected.Antibiotic resistant forms have been found.
Impetigo affected about 140 million people (2% of the population) in 2010. It is most common in young children but can occur at any age. Without treatment people typically get better within three weeks. Complications may include cellulitis or . The name is from the Latin impetere meaning "attack".
This most common form of impetigo, also called nonbullous impetigo, most often begins as a red sore near the nose or mouth which soon breaks, leaking pus or fluid, and forms a honey-colored scab, followed by a red mark which heals without leaving a scar. Sores are not painful, but they may be itchy. Lymph nodes in the affected area may be swollen, but fever is rare. Touching or scratching the sores may easily spread the infection to other parts of the body.Ulcerations with redness and scarring also may result from scratching or abrading of the skin.
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Wikipedia