hello,doctor,my son is 6 years old 25 kg wt,he had fever and cough consulted doctor,and given amoxycillin tab and cough syrup deriphylline.fever subsided,but still he has cough.for second opinion cosulted another doctor she started mucarid cough syrup,asthalin tab and amoxycillin+cloxacillin.but we did not started antibiotic.he is coughing at night in between sleep.which cough syrup is good,mucorid or deriphylline.