My wife developed post-surgery DVT. acutely clogged circulation from the foot to the thigh. After 3 months of medical attention (and advice that she would have to live with it!), I suggested that she follow my ginger advice to at least improve circulation. At the same time I tried it for my chronic cold feet. Within 10 days things improved and she can now travel by plane without swollen feet! I was on 12 m of therapy for hypertension-Norvasc when its known side -effect of oedema became acute. In less than a week off N. but drinking green tea with ginger I was back to norma l(Green tea is also proven to ameliorate hypertension).