Skin Problems & Treatments Health Center
Understanding Impetigo -- Symptoms
What Are the Symptoms?
- A small patch of blisters that after a few hours breaks into a red, moist area that oozes or weeps fluid; appears mainly on the face, but also on exposed areas of the arms and legs.
- In a few days, formation of a golden or dark-yellow crust resembling grains of brown sugar. The infection may continue to spread at the edges of the affected area or affect other skin areas.
Call Your Doctor If:
You have sores or rash that worsens or becomes more uncomfortable. An impetigo infection needs prompt medical attention.
- Small, very itchy, pus-filled ulcers form, with a dark brown crust. This indicates ecthyma, an ulcerated form of impetigo that penetrates deep into the skin. If left untreated, it may cause scarring and permanent changes in pigmentation.
- Urine changes, body swelling, nausea, or headache develop. These could be signs of glomerulonephritis, a kidney disease caused by bacterial toxins.
NOTE: Sores associated with impetigo may be mistaken for herpes, a viral infection. Impetigo spreads faster, never develops inside the mouth, and is rarely confined to one area of the body. If in doubt, see a doctor for an accurate diagnosis.
WebMD Medical Reference
Reviewed by
Louise Chang, MD on December 10, 2008
© 2008 WebMD, LLC. All rights reserved.

