Since you are experiencing pain and irritation during micturition it seems to be a Urinary Tract infection
. i suggest that you complete your entire course of antibiotics . I also suggest that you take lots of fluid . If available take liquids in the form of tender coconut water, lemon juice , cranberry juice.
in case your pain and irritation does not come down even after full course of antibiotic , you will have to go back to your physician to see if there is resistance to the present antibiotics
Hope i have answered your query to your satisfaction