Severe cough and cold. On prescription,

My one and 6 month baby have severe cough and cold, eyes became red, and having stool for 5 times a day  with little fever, 2, months ago due to little watery stool for 4,5 times day our primaey care doctor gave ofluxacin and metroconazole, but baby did not take that medicine for 7 days, only afteer 2 day his mother stopped the antibiotic, so after 5 days problem starts, then after giveing ofluxacin for 7 day it was stopped but again 15 days the same problem started, due to travelling baby has severe cough cold and also fever , doctor has written lRTi and acute gastrointitis in prescription and prescribed cefakind, levofluxacin metrocanazole which baby donottaken, forcefully 2 days cefakind has given two times it was vomitted then by telephonic doctor gave msg to give xone 500 injection bd for 3 days, our baby is breast feeding is it problematic, one injection was given, should we give the other medicinescinarest cough syrup which was also prescribed before on prescription,