<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi there my 3 12 yr old son woke up with the horrible cough almost sound like a bark. He spit out some phlegm a couple of time all in the midst of cryin and shaking.. However once i calmed him down he began shivering like crazy. His hands,feet and body were ice cold.. But his forehead was norma. Right inbetween. I cant figure out if he has no fever why the intense shivering and what about the barking couch  <response>: The shivering and cold feet and hands are all indicates fever even if his forehead seems normal, try to take a rectal or ear temperature if possible, and it will be high.fever and barking cough are signs of upper respiratory tract infection, caused by viral infection, which is self limited disease and will ends by it own.control the fever, keep him HY Chat Doctor. If you notice any strider: high-pitched sound when your son inspire, or you feel he is having difficulty breathing you need to take him to his doctor to assess him and measure his oxygen level, because some of these viruses can obstruct the airways and cause them to spasm. I hope this helps 