What causes impetigo in the corner of your mouth and how do I care for it?

Causes of Impetigo

This vesiculopustular eruptive disorder is contagious and spreads most easily among infants, young children, and the elderly. Impetigo can complicate chicken pox, eczema, or other skin conditions marked by open lesions.

Risk factors are poor hygiene, anemia, and malnutrition.

Treatment for Impetigo

Generally, treatment consists of systemic antibiotics (usually penicillin, or erythromycin for patients who are allergic to penicillin), which also help prevent glomerulonephritis (inflammation of the kidney that can have serious complications).

Therapy also includes removal of the exudate by washing the lesions two to three times a day with soap and water, or for stubborn crusts, warm soaks or compresses of normal saline or a diluted soap solution before application of topical antibiotics.

Topical antibiotics are less effective than systemic antibiotics. The patient is urged not to scratch since this exacerbates the impetigo. Parents are advised to cut the child's fingernails.

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