Why does steamed orange work?

[Agatha Christie]

The science behind the effectiveness of steamed orange for cough for cough relief involves several factors:

• Vitamin C Content: Oranges are rich in Vitamin C, which is known for its immune-boosting properties. This nutrient can be particularly beneficial in managing respiratory conditions and may help reduce the duration and severity of cold symptoms.
  
• Citric Acid: Oranges contain citric acid, which can induce coughing. This might seem counterintuitive, but the action of coughing helps to clear phlegm from the respiratory system, potentially improving symptoms related to phlegm buildup.
  
• Moistening Effect: Both orange and tangerine are believed to increase the flow of saliva and moisten the mouth and throat. This can help reduce the itchiness or irritation that causes coughing. Specifically, oranges are considered good for dry coughs and are safe for long-term use due to their neutral and sweet properties according to traditional Chinese medicine principles.
  

Steaming the orange often with added ingredients like salt or honey is thought to enhance these properties, making it a soothing home remedy for persistent coughs. However, it's important to note that this remedy is more for general, persistent coughs and not for acute symptoms like cold or fever. If there are no improvements or if symptoms are severe, seeking professional medical advice is recommended.