Hello, last Saturday my son got exposed to cold weather and since that night he has been caught with cold, cough and fever. During this we have visited pediatrician for twice and they are saying it's viral. it's 7th day now and this past night again he was severely feverish and so much chest congestion. He can't even breath properly and whole was restless night. please suggest if it could be something else than viral. fever is going and coming.