PLEASE HELP !!!

Ok so I have a bump on the outer lips of my vagina it looks like a pimple I really don't know what it is and I didn't know it was down there until I got in the shower and started to wash my vagina it doesn't hurt or itch .. It only itches if I touch it .. I'm really scared because I never had nothing like this and plus I'm a Virgin so I never had sexual intercourse..  And I put some Aloe Vera gel on it just to see if it would go down .. Please help because I'm really freaked out