Hello,
From the symptoms it looks like an ingrown hair or a boil. Chances of herpes are less. A
boil, also referred to as a skin
abscess, is a localized infection deep in the skin. A boil generally starts as a reddened, tender area. Over time, the area becomes firm and hard. Eventually, the center of the abscess softens and becomes filled with pus. Finally, the pus "forms a head," which can be surgically opened or spontaneously drain out through the surface of the skin.