Nursing, also known as Medical Play, is nothing more than playing a doctor for adults, topped with an SM sauce. The Dom is the doctor or nurse here and the sub is the patient. Nursing includes, for example: anal and / or vaginal examination, enemas, needle play, catheters, play piercing, blood play and the use of a dilator.
Make nursing as exciting as you want. You decide how extensively you will do this. With a suitable white outfit, with the use of instruments, or not. You can make it as exciting and comprehensive as you want.