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A member asked:

My (maybe invalid?) strep test came back +. i also have a little yellow mucus (postnasal drip?). is that possible or could my infection be viral?

A doctor has provided 1 answer
Dr. John Chiu answered

Hard to say: How would you know that the strep test was invalid? Yet it is unusual to have post-nasal drips from a strep throat. If the problem lasts more than 10 days, a bacterial infection may be an issue. If you do have a strep throat however, better get it treated.

Answered 3/24/2020

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