An anonymous reader quotes a report from The Guardian: In a season where colds are rife, holding your nose and closing your mouth might seem like a considerate alternative to an explosive "Achoo!" But doctors have warned of the dangers of such a move after a man was found to have ruptured the back of his throat when attempting to stifle a sneeze. Medics say the incident, which they detail in the British Medical Journal Case Reports, came to light when a 34-year old man arrived in A&E with a change to his voice, a swollen neck, pain when swallowing and a popping sensation in his neck after he pinched his nose to contain an expulsion. The team took scans of the man's neck to investigate and discovered bubbles of air in the tissues at the back of the throat, and in the neck from the base of the skull to halfway down the man's back. That, they say, suggested a tear had occurred at the back of the throat as a result of increased pressure from the stifled sneeze, leading to air collecting in his soft tissues. The authors warn that blocking the nostrils and mouth when sneezing is dangerous, noting that while tearing of the throat tissue is rare, it could result in a ruptured eardrum or even a brain aneurysm.