Why do I start coughing as soon as I turn on the air conditioner in summer?

The main reasons for coughing immediately after turning on the air conditioner in summer include allergies to cold air or air conditioner dust, lung coldness, unresolved colds, and long-term lack of air conditioner cleaning. Details are as follows:

1. Allergy to cold air or air conditioner dust

Individuals allergic to cold air may experience an allergic reaction when exposed to air conditioning, triggering coughing. Additionally, air conditioners may blow out dust particles. When inhaled through the nose, this dust can irritate nasal or bronchial mucosa, causing an overactive immune response and resulting in allergic cough.

2. Lung coldness

People with lung coldness often experience coughing when inhaling cold air, as it may stimulate the bronchi. Therefore, individuals with lung coldness are generally advised not to be exposed to cold air for prolonged periods.

3. Unresolved cough

For individuals who previously had a cough but have not fully recovered, their constitution is typically weak. Sudden exposure to cold air may further irritate the lungs and trigger coughing.

4. Long-term lack of air conditioner cleaning

If an air conditioner has been used for a long time without cleaning, it may accumulate dust, mites, and other contaminants. Turning on such a unit can circulate polluted air, which when inhaled, may cause coughing.

If coughing occurs every time the air conditioner is turned on during summer, it's important to identify the underlying cause. If the cough is allergy-related, avoid the allergen and seek timely anti-allergy treatment. Individuals with lung coldness should focus on strengthening their constitution and practice lung-nourishing habits. Those still recovering from a cough and with weakened bodies should avoid various irritants. Additionally, air conditioners should be cleaned regularly to maintain hygiene.