Mild, moderate or severe is a difference of degree, which in this case determines how long
it is going to take to achieve a particular result.
Certainly, if you perceive no improvement at this time, the betamethasone would be the next step. I can't see any value to you in seeing a urologist, as he is most
unlikely to have any experience or acumen in the use of the steroid. A dermatologist would be more appropriate - or curiously enough, a gynaecologist as they
see similar problems more frequently, and know more about non-surgical treatment.
Still, you have to pick whom you choose to believe, and wear the consequences.