As embarrassing as it is, I need help for an itchy bum

Hoping maybe someone here has a remedy or any idea what was causing theirs if anyone else out there had this problem.

About a month and a half ago, I noticed my butt really started to itch badly at night. I thought maybe I just didn't wipe it well enough or whatever because we've all been there, but this type of itch was excruciating. Some days it would go away, then come back with a full vengeance. I did some research and suspected the possibility of pinworms due to the duration of symptoms, so I tried the treatment. No relief a few weeks later.

Paid my dermatologist a visit, and she suspected a possible yeast infection. No relief from the oral and topical antifungal.

I am about to lose my shite with this. I don't want to keep seeing doctors, but I'm at the point of insanity. I have heard it's bad to clean the area too vigorously with toilet paper, but not cleaning the area well also isn't a good solution. I probably need to avoid scratching at all costs, but the urge is practically irresistible at times, and the temporary relief I feel when I scratch is almost like a high.

If anyone I know is reading this, I will deny it