The girls are still sick. They have a slight cough and phlegm. They went…

The girls are still sick. They have a slight cough and phlegm. They went to the doctor; she said they had a cough, but a couple of days ago, I heard her say that it was saliva ? Overall, she prescribed bronchodilators with bromodual every four hours and an antibiotic Supraks. Has anyone else been sick in our age group and been prescribed antibiotics for bronchitis? Did it help? Were there any side effects? There's no fever. Only coughing with a wheeze and phlegm.