This may be a sebaceous cyst. This type of bump develops when sebaceous glands are blocked. Sebum builds up and a bump develops. This bump can feel hard to touch. Sebum is naturally produced, so there usually is not inflammation.
Answer:
Explanation:
Their lungs grow less than children who do not breathe secondhand smoke, and they get more bronchitis and pneumonia. Wheezing and coughing are more common in children who breathe secondhand smoke. Secondhand smoke can trigger an asthma attack in a child.
