You should contact a healthcare provider if your child's cough:
1. Brings up blood.
2. Becomes violent.
3. Is accompanied by a fever.
4. Is accompanied by signs of heart failure, such as leg swelling or a cough that worsens when lying down.
5. Is accompanied by stridor, a high-pitched sound when breathing in.
6. Is accompanied by thick, yellowish-green phlegm with a foul smell.
7. Is accompanied by unintended weight loss and night sweats.
