My daughter, age 29 just returned from Florida running in the two marathons this past weekend. She is running a fever of 103.3. Can Z-Pak help a fever? She doesn t have any chest congestion, sore throat , just the high fever, not saying that s not bad. Her c-pay is less than this, so I ll just keep looking on-line for the answer about the fever and Z-Pak. If she s still running a fever tomorrow, she can go to a local dr. and be able to get in the same day. Thanks for your time. Much appreciated. The MOM