most sore throats are viral especially when sore throats are accompanying a stuffy nose. you most likely have a bad cold and may not need a self-prescribed antibiotic at all. i am not a big fan of people randomly taking leftover (and expired) antibiotics as you can see.
i have a rx for omnicef that i have have since 4/13 is it still good to use for sore throat swollen tonsils stuffy nose?