It is important to take a baby to the doctor for a cold under several circumstances:
- For babies younger than 3 months, call a healthcare professional early in the illness because their immune systems are not fully developed and they are at higher risk for serious problems.
- For babies 3 months or older, see a doctor if the baby has a temperature above 100.4°F (38°C), isn't wetting as many diapers as usual, has trouble breathing or wheezing, has thick green mucus from the nose, persistent cough, ear pain, or if symptoms worsen or don't improve in 10 to 14 days.
- Seek immediate medical help if the baby refuses to nurse or drink fluids, coughs hard enough to vomit, has blue or pale skin around lips, or shows signs of extreme sleepiness or low energy.
- Also consult a doctor if the baby vomits often, has blood in mucus, or if there are signs of dehydration or difficulty swallowing.
Overall, it is better to call or visit a pediatrician if the baby exhibits any concerning symptoms, especially if very young or if symptoms worsen or persist beyond a week.
