I am a rheumatologist and often see new referrals for blue fingers. While the majority of the cases of RP are benign and very common in society running from 10-20%, there are very rare instances that this condition may require additional work up. What is described as RP is the ischemic phenomenon where the small vessels in the end organs, such as fingers, nose, ears, toes sometimes tongue’s vessels get constricted which may be accompanied by unpleasant sensation of pain, numbness, tingling and discoloration from white, blue, blotchy and finally with the warming phase that extremities, hands, toes become red, then pinkish or natural color again.

With its strong and near medicinal flavor and smell no wonder that onions have been praised since ancient times, across Asia and Roman Empire, for its cold relief and other healing properties.