My baby has been having running nose for more than three months. We've gone to hospital severally but still. Just this week we ran a chest X-ray and it was confirmed that he has infusion at the chest and that we should continue with the medication he is on. Ibuprofen and amoxiclav.
Since you are seeing a doctor already please follow his instructions. If you are not sure about the treatment kindly seek a second opinion. Preferably see a paediatrician.