Healing sounds

Yesterday I saw Fiona, my therapist. I explained to her that I was feeling off center, stressed, paranoid, enraged, in short, feeling as usual. She told me that my liver meridian was blocked, and that we needed to energize its mu point. For that we needed to say a specific sound, which was... the "th" sound. Great, the one sound I need to balance my freaking meridian is just the sound no foreigner can pronounce.
Which means that today I'm feeling off center, stressed, paranoid, enraged, in short, pretty much as usual.