Short Answer
It is forbidden to show your private parts to another person unless it is your spouse or you have a genuine need. A doctor or nurse usually will only want to see your private parts due to a genuine need. Showing your private parts to a qualified practitioner who removes pubic hair for you will only be allowed if doing the procedure yourself through shaving/waxing will cause physical harm such as severe skin conditions, chronic painful ingrown hairs, severe folliculitis, or some other painful condition.
Version 0.25
[Shaykh] Mustafa Umar