Check with doctor: The rotten eggs smell of sulfur is occasionally caused by a sinus or nasal infection. First priority is to be sure there is not a gas leak at your home. If smelled everywhere, sometime related to conditions that affect the nerves of smelling or part of brain that interprets smells. Can get olfactory hallucinations (smells that are not there) as side effect of some medications. See a doctor.
Answered 12/19/2016
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