2-Skin+Infections+(bacterial,+fungal,+viral)

Impetigo is a bacterial infection that is highly contagious that results from staphylococcal or streptococcal infection. It most often occurs in young children and can be treated with antibiotics. It causes red sores generally around the mouth and nose that can break open, ooze fluid and create a yellowish crust.

http://www.webmd.com/skin-problems-and-treatments/tc/impetigo-overview

Chicken pox is a viral skin infection caused by the varicella-zoster virus. It is common in kids under age twelve. An itchy rash that look lilke blisters can appear all over the body and be accompanied by flu-like symptoms.