Just wanted to find out if your on antibiotics cause and have a cough can you take cough medicine?

Hi, Safinashah!
It will depend entirely on what antibiotic you're taking and what cough medication you plan on taking.
You can use the Interactions Checker by typing in the names of the medications:
https://www.drugs.com/drug_interactions.html
Better yet, you can ask your pharmacist for their professional advice.
Regards, Wildcat