Symptoms
The following are signs and symptoms of impetigo:
Red sores that quickly rupture, ooze for a few days and then form a yellowish-brown crust
Itching
Painless, fluid-filled blisters
In the more serious form, painful fluid- or pus-filled sores that turn into deep ulcers
Types of impetigo
Impetigo contagiosa. The most common form of impetigo is impetigo contagiosa, which usually starts as a red sore on your child's face, most often around the nose and mouth. The sore ruptures quickly, oozing either fluid or pus that forms a honey-colored crust. Eventually the crust disappears, leaving a red mark that heals without scarring. The sores may be itchy, but they aren't painful.
Your child isn't likely to have a fever with this type of impetigo but may have swollen lymph nodes in the affected area. And because it's highly contagious, just touching or scratching the sores can spread the infection to other parts of the body.
Bullous impetigo. This type primarily affects infants and children younger than 2 years. It causes painless, fluid-filled blisters — usually on the trunk, arms and legs. The skin around the blister is usually red and itchy but not sore. The blisters, which break and scab over with a yellow-colored crust, may be large or small, and may last longer than sores from other types of impetigo.
Ecthyma. This more serious form of impetigo penetrates deeper into the skin's second layer (dermis). Signs and symptoms include painful fluid- or pus-filled sores that turn into deep ulcers, usually on the legs and feet. The sores break open and scab over with a hard, thick, gray-yellow crust. Scars can remain after the sores heal. Ecthyma can also cause swollen lymph glands in the affected area.
When to see a doctor
If you suspect that you or your child has impetigo, consult your family doctor, your child's pediatrician or a dermatologist. Your doctor can recommend a treatment plan based on the type of impetigo and severity of the infection.
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