1. Do you have any other symptoms besides your inability to sneeze such as numbness
, weakness, decreased gag reflex, hiccups, altered taste
, visual problems, trouble swallowing or breathing?
2. You should see a neurologist
to rule out any disruption of the sneeze reflex pathway. You may require an MRI and C.S.F. examination via a Lumbar Puncture
, if this persists.
3. If your inability to sneeze is an isolated symptom, it is indeed rare. Local causes include damage to nasal mucosa, thick mucus, side effect of medication and rarely, lung problems. Damage to the Vagus
and Phrenic nerves in the chest may also cause this.
4. In short, if this persists you need an examination from head to chest.