First, read the English article below.

In babies over 3 months of age, call your doctor if your congested child has any of the following symptoms with a stuffy nose, which could indicate the presence of a cold or other infection:  A temperature over 100.4 degrees F (38 degrees C). Reduced urine output Ear pain or unusual irritability Red eyes, or greenish or yellow eye discharge Swelling of the forehead, eyes, side of the nose, or cheek Persistent cough Trouble breathing White or yellow spots on his or her throat Nasal discharge that had a foul smell or is a color other than white or yellow A cough that produces mucus or lasts longer than 10 days Symptoms that last more than 3 weeks If your infant is under 3 months old, call your pediatrician as soon as you see signs of a cold. A cold in babies can quickly develop into something more serious, and it interferes with their ability to drink milk, leading to potential dehydration. In some cases, a cold or other infection can turn worse rapidly. If you see any of the following symptoms, call emergency services or seek immediate medical attention:  Your baby coughs hard enough to make him vomit You see changes in your baby's skin color Your baby coughs up blood Your baby has trouble breathing Your baby turns blue around the lips and mouth 

Now, please write a short abstract for it in Chinese. Abstract:
就医。 如果宝宝还不到3个月，请立刻就医。 必要时挂急诊。