Various possibilitie: excluding actually having copper (filings) or copper tasting foods/drinks (matcha). Infections of the sinus, or teeth, irritation of the nerves involved with taste/smell are some other possibilities.
Answered 10/23/2017
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3 doctors weighed in across 2 answers
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
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