It lacks comfort and fit despite of the proper wearing of the HEADrang if your head is asymmetric. It's because the fit of the P-plate is different depending on the varying recess and protrusion of left and right face due to asymmetry.

Therefore, please recognize that the discomfort you feel when you use it for asymmetric correction is occurring naturally in the course of correction to normal facial contour. However, if you wear it on normal symmetric face, you will feel a sense of comfort and fit owing to close fit of the P-plate on the face.