Talk to Dermatologist on Some Sort Of Vaginal Infection, May Be Its Yeast Infection

its my 9th week of pregnancy, i have got sever rash in thights crease first, which did not heal properly even after using mustard oil, corn flour and rashnil cream. it healed on its own in two days later on it appear again with burning around vagina and thights creases, itching, thick whitish discharge and small bumps (may be due to itching) . i have applied hydrozole twice a day, and polyfax once a day for few days in a row. but as sson as i stop using these, skin situation gets back in a day. it is happening constantly for more than a week and half now. i visited my gynae, she did not examined but just said it can happen in last month it will soon vanish on its own. but it is not. kindly do suggest me some medicine so my skin would heal asap, as my delivery date is 25 july and its going to be a vaginal birth. i need healthy vagina till then. waiting anxiuosly to get effective treatment soon enough. jazakAllahu khair