Bronchitis and Pneumonia: Children exposed to cigarette smoke are more likely to develop bronchitis and pneumonia. This is due to the irritants in tobacco smoke, which can impair the immune system and damage the respiratory tract.

Bronchiolitis: Infants are particularly vulnerable to bronchiolitis, a common viral infection of the small airways in the lungs.

Asthma: Children exposed to tobacco smoke are at a higher risk of developing asthma. For those who already have asthma, exposure to smoke can exacerbate symptoms, leading to more frequent and severe asthma attacks.

Cystic Fibrosis: For children with cystic fibrosis, secondhand smoke can worsen respiratory symptoms and lead to more frequent pulmonary infections.

Reduced Lung Function: Chronic exposure to secondhand smoke during childhood can lead to long-term reductions in lung function and increase the risk of developing chronic obstructive pulmonary disease (COPD) later in life.

Increased Morbidity: The cumulative effects of respiratory infections and chronic conditions can lead to higher morbidity.

Allergic Rhinitis: Secondhand smoke can increase the risk of developing allergic rhinitis, commonly known as hay fever.

Eczema (Atopic Dermatitis): There is evidence to suggest that exposure to tobacco smoke may increase the risk of developing eczema, a chronic skin condition characterized by itchy, inflamed skin.

Food Allergies: Some studies have suggested a potential link between exposure to cigarette smoke and an increased risk of developing food allergies.