So three weeks ago, I had allowed my boyfriend to finger me and he had used saliva as lubricant. He is a virgin and had never done anything sexual with anyone else except for me. Two days after I began to feel dryness and a slight burning on my vagina. The symptoms were rather mild and on and off. After three weeks I saw a doctor who asked me if I was sexually active. After explaining I've never had sex but I had let my boyfriend finger me, she immediately ruled out stds. I informed her it was with saliva but she was already talking. She looked at me externally and just saw irritation and immediately diagnosed it as a yeast infection. She prescribed me an oral medication as well as a cream, however the cream has made my symptoms much worse in a matter of two days. Should I be concerned this is an std instead?