Viral URI: Typical for a garden variety viral upper respiratory infection, i.e. common cold. "Yellow patches" can suggest bacterial infection like strep, but it often happens with viruses. Given your age and mention of STD: If you also have painful sores in or near the mouth, it could be herpes. And if it lasts more than a week and also enlarged lymph nodes etc, ask doc about infectious mononucleosis (mono).
Answered 6/17/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
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