Dear, Staphy is one kind of bacteria that lives in the skin as well as in mucous membranes (e.g. nose). It is present even in healthy skin. While it is normally found in skin, it may be considered harmless as long as there is no wound. Otherwise, Staphy is one of the main bacteria that is most commonly involved in children's wound infection. My daughter was a victim of staphy. Until I discovered that Fucidin fights against wound infection so I used this on my daughter. Good thing, my daughter's wound got healed within five days. Thanks to Fucidin. To know more about wound care, click here: http://www.notostaphy.com.ph