pea sized lump below vagina with white head

So for the past 2 days i felt as if i had cut myself below my vagina, only to look before do i have a lump on the very bottom of my right vagina lip, it did have a white head on and i did pop it and puss came out although the lump is still there, could this be in an ingrown hair? i do shave and i am also sexually active although my partner does not have any std's! I'm just scared as to what it may be? Should i get a hot bath and stick some neosporin on it? and if it doesn't go down within the next couple of days should i see a doctor? please help i'm scared