Hi I Went To The Doctors Today Because I Had

Hi I went to the doctors today because I had a sore down below and it stung every time I went wee I also have the same sores on my pubic area which one looks like a slit and there is one near the opening on my vagina nearer to my anus the doctor looked at the one inside my vagina under my clit and above the uretha opening and said it was a ulcer and gave me canestan cream and the tablet which goes inside but I'm convince they have got it wrong