UB 20

Tongue with deep crack in the medium warmth of the limb body slightly red but in the center almost purple, toothmarks. Pain and musculoskeletal problems on the right side. 23 year old girl, dancer. Exhaust from swallowing.

I have an indented line down my toungue I have heard that is a sign of a deficiency. Anyone know anything about this?

If I wanted to open the yin wei meridian, I would needle pc6, the rest of the points I intend to use then close with sp4. To open the chong, the same thing but reversed. I have some ion cords, using the example of the yin wei, would I put the black clip on pc 6 or the red? Thanks a lot.