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A member asked:

How long does it take for a penicillin injection to clear up acute pharyngitis + ear infection . does the injection guarantee to clear up my symptoms?

A doctor has provided 1 answer
Dr. Natalie Hodge answered

Specializes in Pediatrics

48 to 72 hours: By the second day you should be a bit better, and much better by the third. The shot will only be helpful if you have a strep throat as an etiology. If your sore throat is viral this shot will not help.

Dr Grin agreed

Answered 10/21/2014

3.6k views

Thank

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