I agree with the soft tissue injuries, especially neck and shoulder tweaks. Not sure about tendonitis or sprains, but I doubt it could hurt, as the treatment is non-traumatic nor invasive. I'd be curious about this though, Lindsey?!?! (My Hanni Doc in Jeonju has also studies some chiropractic, so he has done some intense manuevering on me, but always with my permission and in cases where chiropractic was what I needed.
I've personally had good results with a cold and with cramps. Several friends who've had serious migrane problems have found major relief, and even those who didn't get full relief said it helped "at first" or "a little".
Keep in mind that you don't have to belive in all of the theories behind Oriental Medicine for it to work (I don't) and also keep in mind that despite it's 5000 year history, Hanni and Chinese medicine continues to develope for the modern world (witness the gaining popularity in Western medical schools and western enrollment in the East!) . . . you can expect, along with your accupuncture and suction, TENS, ultrasound, massage and parafin treatments. Many of the same procedures you'd get in physio at home are integrated into Oriental medicine (most likely borrowed from it!). If your doc speaks English well, you might also get a small lecture about lifestyle!
The only problems I've had have been 2 very painful procedures (out of probably 50+ sessions). . . once, my back was perforated with something that looked like a medieval weapon or mallot with pins on it, then the "bad blood" was painfully sucked out-- and when I faineted, the curtain was pulled around me and I was left until I came to. second, some burning ash dropping procedure (also on my back, so I couldn't see so well) --the burning hurt!!
It's generally about W3,000 with insurance, W5,000 without for about 40 minutes. Doctors' English varies, as unlike western medicine, the language of instruction/books is Chinese rather than English. Most major cities will have doctors with resonable English, or bring a friend. If you see a meat-tenderizer with spikes or fire come out, you have the right to say no!
"If you can't do something well, you might as well learn to enjoy doing it poorly."
-- from a de-motivational poster, but I find it oddly liberating