Hello, my name is Dr.Dorina Gurabardhi. I understand your concern. I think that the symptoms are related to uper respiratory infection. Some advices that I can give to you are : -Give your child plenty to drink. This will prevent the mucus from thickening. Hot liquids or soups will ease the soreness and irritation in the chest and can loosen mucus as well. - Let your child inhale humidified air.Water vapor can ease and reduce your child s coughing. Use a cool-mist humidifier in your child s bedroom. -Run a warm shower in the bathroom with the door shut. -Hang a damp towel in your child s bedroom. - If your child has a dry cough or a croup cough, let him inhale cool air. -Use expectorant cough medicines, which help loosen mucus for a wet cough. - Use cough-suppressant medicines, which inhibit the cough reflex for a dry cough that affects sleep. Hope my answer was helpful , if you have any other questions I ll be glad to help, thanks!