Hello please guide,here In Pune the temperature is very low according to to normal temperatures, it's going to reach to 14 degrees in night, how can I keep my baby warm do I make him wear sweater?, soon coming Tuesday we are going to travel at our in laws place Hyderabad , by train in AC boggie ( for temperature reasons)that day temperature is 16degree how can we travel safely, please guide.how can I keep him warm?without he getting any infection and fever? And reaching Hyderabad safely , currently since 5 days giving him Zincovit, for immunity anything else I can give he is 4months old