Chronic sinusitis is a prolonged inflammation of the paranasal sinus lining, leading to mucosal swelling, increased mucus secretion, and impaired natural sinus drainage. For some individuals with chronic sinusitis, symptoms may appear or worsen after swimming, including nasal itching, sneezing, congestion, runny nose, facial pain, or headaches. In severe cases, thick, yellow or green nasal discharge may occur, which can drain into the throat, causing pharyngitis.

During swimming, water can enter the nasal and sinus cavities, altering the mucosal environment or hindering sinus fluid drainage. Disinfectants like chlorine, used to maintain pool water quality, can irritate the nasal and sinus lining, which is already sensitive in those with chronic inflammation. Unhygienic pool water further risks irritating the nasal and sinus lining, potentially causing sinusitis symptoms to recur or intensify.

Individuals with chronic sinusitis can swim, but it is important to choose hygienic swimming pools. Avoid swimming immediately after a pool has been treated with chlorine, as chlorine levels are high at this time. Using earplugs and a nose clip while swimming can help reduce the risk of sinusitis complications.

Doctor Hang consulting a patient. Illustration: Tam Anh General Hospital

You can also try swimming backstroke to limit water entry into your nose and throat. If you accidentally inhale water, blow your nose thoroughly to clear the water. If water enters your ears, tilt your head, gently shake it, and pull your earlobe straight to help the water drain out. Swimming two to three times each week allows the nasal and sinus lining time to recover. Avoid swimming for extended periods, as this can lead to catching a cold. Also, avoid exiting the water abruptly to prevent a sudden temperature change in your body, especially in windy areas. After swimming, shower immediately and clean your nose and throat with physiological saline solution.

On days when sinusitis symptoms are pronounced or during any recurrence, it is advisable to postpone swimming and use prescribed medication to manage the symptoms. If the condition recurs frequently or persists, you should consult an Ear, Nose, and Throat doctor for timely diagnosis and treatment to prevent complications.

Master of Science, Doctor of Medicine, Level II Specialist Tran Thi Thuy Hang

Head of Ear, Nose, and Throat Department

ENT Center

Tam Anh General Hospital Ho Chi Minh City (TP HCM)