Help! Is it something worse?

Yolgens

So, I’ve started having sex a little over a month ago. I have only been with two partners and the second one, I’ve had sex with him about 3 times. Always protected sex. We had sex last weekend and the day afterwards I started having unbearable itching, yellow smelly discharge, and my vulva looked discolored almost as well as swollen. My roommate and I suspected that it was a yeast infection so we bought AZO and 3 day Miconazole suppositories because she said it worked miracles for her. My itching had stopped for a few days and the discharge as well, my vulva looks back to normal. But today the itching has came back, and it’s my last day of the Miconazole. It’s more of a come and go, but now I’m really scared that it’s something worse. Also, it’s not easy for me to go to the doctors since I’m 5 hours away from home and living the broke college student life.