B.C.
It sounds like impetigo.
"Impetigo contagiosa
The most common 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 the infection is extremely contagious, just touching or scratching the sores can cause it to spread to other parts of your child's body. "