Brief Answer:
2 possibilities here

Detailed Answer:
Hello sir and welcome.

Thank you for writing to us.

I have gone through your query with diligence and would like you to know that I am here to help. You should start experiencing an improvement within 48 hours from the initiation of the antibiotics. But if you have not experienced an improvement since being on the z-pack for 4 days now the possibilities could be:

1. You are resistant to the antibiotics

2. Yours could be a viral infection which will not respond to antibiotics and so the antibiotics will only help to prevent secondary infections. And so you shall only start feeling better within 4-7 days when your body starts fighting the infection itself, which is usually the case with viral infections

Please re-schedule a visit with your doctor for further clarifications. Please do not hesitate to write back to me for any further clarifications, I am always here to help.

Best wishes.

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