 [ Symptoms ] my baby is poop is light tan and clay like it has a bad odor and a small amount of blood should i call the doctor [ Disease ] one must consider bronchitis and of course various types of pneumonia these are the more common complications of a cold that worsens colds typically last about a week so when you have prolonged and worsening symptoms secondary bacterial infections are a strong possibility you will need to see a medical provider so that you can be properly examined diagnosed and treated     three things unfortunately that cannot be done blindly over the internet