*Need help*... fast please?

My boyfriend and i had 2 days ago, and we used a condom. shortly after, my started itching and is slightly swollen and red. there was also a little discharge that was thick and white looking. we have used the kind of condom before, and this has never happened.. could i develop a reaction after already using it or could it be from the lubricant, or maybe his bodily fluids if they came in contact with me? Also, how should i treat this? going to the doctor is kind of out of the question because my parents dont know we have .. any advice, please? also, its not an std. so please dont say that.