After doing hatsurei ho, or your usual self healing. You can do one of a number of things.
Visualise an imaginary self sitting or lying in front of your physical self and place your hands on the affected area on your imaginary self and let the Reiki flow, similar to a distance healing.
Visualise an imaginary self standing behind your physical self, with your imaginary self placing hands on your affected area, and let the Reiki flow.
Or a combination of these. With your physical self in the middle.
After all it is the intent that is the main point not the physical laying on of hands.
Hope this helps, you can some-times actually feel hands touching you when this is done. And you can certainly feel the Reiki flowing.
Reiki light,
John.