Suggest Treatment For A Painful Lump In The Vagina

I am a 19 year old female. I have a Large painful lump on the top of my vagina - by top I mean on the hood where the pubic hair grows. At first I thought it to be an ingrown hair, but I don t think that s possible now.. It s more painful under the skins surface. Hurts to wear clothing, or to even touch it. It s red, and a bit large. It seems to have been growing rapidly in size over the course of three days. I m not sure what caused it, how to treat it, or where to go to get seen by a doctor. I m hoping I won t have to, but at the rate the pain is increasing, and with the size enlarging, it s hard for me to walk, sit, or even sleep. - I may just have to go to the doctor. I think it might be a cyst.. does this sound right? Please if you have any diagnosis s or any kind of at-home treatments I can try before going to the doctor, please... PLEASE enlighten me!