What condition is likely indicated by subconjunctival hemorrhage in a patient with severe coughing episodes?

Subconjunctival hemorrhage occurs when small blood vessels in the conjunctiva break, leading to bleeding under the clear membrane covering the white part of the eye. This condition can be triggered by activities that increase pressure in the chest or head, such as severe coughing.

Pertussis, commonly known as whooping cough, is characterized by intense and prolonged coughing spells. These severe coughing fits can lead to increased intrathoracic pressure, which in turn may cause subconjunctival hemorrhage. The likelihood of this symptom appearing in conjunction with whooping cough is higher than it is with other respiratory conditions, where coughing spells may not be as extreme.

In contrast, while pneumonia, bronchitis, and asthma can all present with coughing, they typically do not result in the level of severe coughing that can lead to subconjunctival hemorrhage. Therefore, the association of intense coughing episodes with pertussis makes it the most likely condition to reveal this particular manifestation.