Here are the INDICATIONS to see an MD when you have a 'cold w/ sore throat':
Otherwise [in the absence of above], it is just a viral infection and should self-resolve within 7-8 days.
I DO hope you found my Answer to be helpful regarding your medical condition. IF SO-please hit **ACCEPT** as you read this Answer. THANKS for your trust!
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Best Wishes for Your Health,
--Dr. Steve, (Your Online Family Doctor)