Trauma, infection: Complete loss of the sense of smell can follow certain upper respiratory infections trauma can impact the nerves from the olfactory system with loss of smell. Sometimes the loss is partial with sensitivity to certain smells and loss of others. Check in with your otolaryngologist for these.
Answered 9/28/2016
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Zinc can do this: Sometimes zinc (zicam) can cause a loss of sense of smell.
Answered 10/22/2012
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