Vitamin B Complex: Recently went on an overseas air flight. The 1st leg of the journey was 7 hours, my feet and ankles were extremely swollen on landing. But during the 2nd leg, 12 hours, I was lucky to find spare seats and lay down to sleep, so I had minimal problems on landing. 4 weeks later, on the return 12 hour flight, I had to sit the whole time, but I made sure to get up and walk every half hour or so. On landing, I had swelling again, but this time with an ugly red rash up the inside of both shins. 3 days of extensive walking and sight seeing only made the rash darker, although the swelling did subside. But of course it returned after the 7 hour flight home. I read at home that night that Vitamin B might help with Edema - fluid retention. I took 2 "Mega B" capsules, and the next morning, the swelling was gone, and the rash had completely disappeared, there not a trace of it, yet it had been an extremely dark, solid, red mass with slight itchy bumps, running 2/3rd's up the length of each shin. I only wish that I had known this before the trip, I would have taken a bottle of Vitamin B with me. I now take Vitamin B each day, and have noticed that my feet are no longer puffy in the mornings .. a problem that has occurred every now and then since my last pregnancy 11 years ago. Thanks for a truly informative site.