In the auricular point group , vaccaria seeds were pasted at gan ( CO12 ) , shen ( CO10 ) , pi ( CO13 ) , wei ( CO4 ) , yan ( LO5 ) , pingjianqian ( TG2i ) , pingjianhou ( ATli ) and zhen ( AT3 ) ; one ear was chosen every time and the other ear the second time with pressing of patient 's own for 5 min every day .