I have a baby boy nd he is 7+ months. He is having congestion since 2+ months. I had done check ups several times. At that point of time his problem rectified. But again and again same problem occurs when whether changes. In a normal cold weather he starts having congestion prob. What should I need to do so that prob will be resolved from the root 2- He is having coughing problem. Is this problem is because of the above mentioned problem?