Help me!

Okay, so I lost my virginity about two years ago, but I’ve recently become sexually active. I’ve had seven different partners within the last three months, all of which I had unprotected sex with. Before the last three partners though, I went to the women’s clinic and was put on a birth control pill. Ever since then, I’ve had horrible smelling discharge and have developed a rash around my groin area, like where my panties go in between my thighs. I don’t know if this is the cause of an std or if it’s a side effect of the birth control or what. Any input before I go back to the clinic?