My baby is 2.5 years old. recently we joined her in play school. After one week she got throat infection following fever. we gave paracetamol and antibiotics as per the advice from the doctor. The fever went away the next day and cold was there for her. Then again she got fever after three days we gave paracetamol and the fever last for one day and it went. Again after three days she got running nose followed by fever. I need advice from paediatric doctor. What may be the cause for this . In a month she got fever for three times.