Vaginal problems. Having intercourse.

I had vaginal infection in last year April.i had rashes and burning sensation while having intercourse.it reoccured few times after getting healed.i used to get yellow discharge while peeing and burning sensation too when infection  was more.i took vaginal insertion tabs as prescribed by doctor.now I had internal burning sensation unlike earlier.the entrance rim u can say,inner part of that .it gave very bad burning pain during intercourse and once he was inside and move it to and fro few times it completely went and after doing few times I started feeling burning sensation a bit deep n on longer area inside on right side.i dint had rashes on outside this time.i m really scared.while doing intercourse if he stretches my bum even a bit it really hurts on my vagina hole n I feel like I will get a wound there.it was never like this before.it will be really helpful if u tell me what to do.i m really confused and scared while having intercourse.