Doctor Nguyen Huu Truong, Deputy Director of the Clinical Allergy - Immunology Center at Bach Mai Hospital, explains that continuous sneezing, red noses, wheezing, and difficulty breathing upon entering an air-conditioned room can signal the body's reaction to airborne allergens. Closed, humid rooms with limited air circulation create favorable conditions for mold and dust mites to flourish, especially when air conditioning systems are not regularly cleaned.
"An air conditioner that is not regularly cleaned and maintained is like a machine blowing mold spores directly into users' noses and lungs, triggering allergic reactions in sensitive individuals", Doctor Truong warned.
Allergies caused by mold and dust mites often progress subtly and are easily overlooked. Common signs include itchy, red, or gritty eyes, even without sleep deprivation or prolonged screen time. Sneezing, nasal itching, a runny nose, and nasal congestion may appear when the air conditioner is on, but significantly decrease in fresh air. Skin rashes or hives can occur without contact with new foods, medications, or cosmetics. A persistent dry cough, wheezing, or a sensation of breathlessness may also linger in enclosed rooms.
"If these symptoms repeatedly occur in an air-conditioned room, it is highly likely that your body is reacting to airborne allergens", Doctor Truong stated.
Based on clinical experience, the doctor advises people to proactively change their daily habits to reduce the risk of allergies and respiratory illnesses:
Regular air conditioner cleaning: Do not wait until filters are heavily coated with dust to clean them. People should regularly clean the filtration system to remove accumulated dirt and mold.
Increase air circulation: Avoid staying in enclosed rooms for extended periods. Open windows at the end of the day or on weekends to allow natural sunlight and fresh air in.
Clean with a damp cloth: Prioritize using a damp cloth to wipe surfaces instead of dusting with a dry cloth or feather duster, to prevent dust and mold from spreading in the air.
The doctor advises against complacency regarding persistent allergy symptoms. If sneezing, nasal itching, wheezing, or rashes recur frequently, it is advisable to seek medical attention to prevent the condition from progressing to chronic issues, which can complicate later treatment.
Le Nga
