Hi, my 7yo has had a constant heavy cold since the mid-end of September. I took him to the GP at the end of October as his cough got quite bad and he said it was viral and his chest was clear. He then got chickenpox a couple of weeks later, which has now cleared, but his cough getting worse. But is it normal for children to have a constant runny nose, feeling tired etc with no break? It just doesn't seem to be shifting. Thanks