there is a bump like acne on my vagina lip, what is it ?

i just know realize i have a bump like a pimple with no white head near my cit on the left side of my vagina lips , it hurts and it bothers me , i sorta squezed it so i think why it hurts. I've had a pimple next to my vagina lips before and oil came out but this i think its the same cause its not herpes because im clean and so is my boyfriend like we gotten tested before. what do you think i should do ? and what is it ?