Cold sores can be secondarily infected with bacteria, resulting in impetigo.
It sometimes starts as a spot or a blister and often is in the corner of the mouth but can be all over the body. As it develops, it turns a lot redder and weeps. It is highly contagious, so make sure the infected has their own towel and face cloth. Hope this helps !!
I think you mean Impetago which has a common name of School sores. This is an infection which needs antibiotic treatment prescribed by your doctor. They are called school sores only because they are highly infectious and children at school can catch the bug off others more easily than anywhere else.
Impetago is a highly contagious disease that causes scabs to be formed wherever it has spread causing itchiness you wouldn't believe . Scratching to relieve the itch actually pulls the scabs off resulting in other bareas to become infected. It can be contacted anywhere and is easily treated with drugs.