Talk to Gynecologist on May Be Side Effect

I was recently diagnosed with PCOS. I was primolut N by the doctor. I took the meds for 10 days and had mild vaginal irritation. However, after discontinuation of meds, I am experiencing pain that becoes severe at night. Can you pls recommend some home remedy or medicine for vaginal pain. (I have noticed that the pain aggravate when I pass urine, can it be the cause?) Age: 23 Unmarried Weight: 42 kgs