Hi, KaiJiaH:
Mine was not a long-haul flight, but a flight nevertheless within the U.S. I flew to California to get treated by Dr. Steven Chang. I flew home the very next day after my 3rd and final treatment. The flight, while exhausting, didn't seem to impact my treatment outcome, which was excellent (a near-miraculous recovery). The pressure change didn't affect my ear or hearing nerve at all.
For months both before and after treatment, I took Flavenzyme (natural anti-inflammatory enzymes; buy online at vitacost.com). After awhile, I switched to taking only bromelain, which even Western research shows is anti-inflammatory and can shrink certain tumors. I also took turmeric extract daily for inflammation. I have no way to be certain, but I believe taking the bromelain was greatly responsible for the tumor shrinkage I had post-CK (although Flavenzym, which contains bromelain, had no affect whatsoever before treatment).
I commend you for traveling in search of your highest treatment option. So many people choose the convenience of being treated locally, sometimes with very sub-par results. You are giving yourself the greatest gift.
Best wishes,
TW