While pinching your nose and clamping your mouth shut to contain a forceful sneeze may be part of the workplace etiquette it can rupture the throat doctors have warned. Ear nose and throat (ENT) specialists at the University Hospitals of Leicester NHS Trust warned that trying to withhold a forceful sneeze should be avoided as it could lead to 'numerous complications'. 'Halting sneezing via blocking (the) nostrils and mouth is a dangerous manoeuvre and should be avoided' said researchers including Sudip Das an ENT specialist at the hospital. Here are 5 common causes of allergic sneezing you should know. In