Impetigo

Impetigo is an infection of the top layers of the skin and is most common among children ages 2 to 6 years. It usually starts when the bacteria get into a cut, scratch, or insect bite. Impetigo is usually caused by staphylococcus (staph), but can also be caused by group A streptococcus. 

Symptoms

Symptoms start with red or pimple-like lesions (sores) surrounded by reddened skin. These lesions can be anywhere on the body, but mostly on the face, arms, and legs. Lesions fill with pus, then break open after a few days and form a thick crust. Itching is common. The health care provider can diagnose the infection by looking at the skin lesions.

Transmission

The infection is spread by direct contact with wounds or sores or nasal discharge from an infected person. Scratching may spread the lesions. From the time of infection until symptoms appear is usually 1 to 3 days. 

Treatment

Treatment of  impetigo depends on the patient's age and the severity of the infection. The health care provider may prescribe oral antibiotics or topical antibiotics.

References:

National Institute of Allergy and Infectious Diseases, USA.