Read the following article and answer the question.

In the Last two weeks I ' ve been having a bad cough starting the morning of the night I saw Tokyo Police Club . Since then I ' ve been coughing a lot more but I continued to go to Uni . On the weekend I finally went to see the doctor and we both saw it as a common cold or flu and gave me some antibiotics . I took the antibiotics for 3 days but it did n't show any progress . The Monday I went to uni was horrible so I stayed home Tuesday and Wednesday . Thursday I went but still was n't well enough to do any work . Yesterday I went to see the doctor again .

What is the narrator taking so much medicine for ?
They are taking it for a viral infection .