Hi, Firstly I Used A New Soap Which I Though

Hi, firstly I used a new soap which I though irritated my vagina, so i went to the doctors because I thought it may have caused thrush, I was given a canesten clotrimazole cream to apply to the outside, but I had to go back because I then felt it was more on the inside/entrance of the vagina so I was then given the tablet. It didn't irritate much in the first place, only when I had sex, so I didn't have sex for around about a week because I inserted the tablet and gave it time to work. A week later I had sex with my boyfriend a couple of times over the weekend, but the last time that we did it I felt a bit bruised.. I thought this was normal because I've had it before which I thought was caused from having sex too much, but then when i woke up the next day my vagina was swollen and itchy! Also, me and my boyfriend have only had sex with each other so it's not an STD! Please help.