Sharp pain in my cervix/ vagina area? helppp?

okay so for about 2 weeks im getting sharp knife like pain in my cervix area. im going to the doctor tommorow, but for the last two weeks i was prevent it from hurting so much such as applying yeast infection creams in my cervix area, and drinking lots of water and cranberry juice and eating yogurt, i also stopped eating salt and spicy food, its still hurts? i know i have an infection, but can somebody tell me what kind of infection i have and how i can prevent it ASAP, please, and thank you :)