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How much damage does pinching your nose and blowing your nose do to your ears? This question depends on whether you are pinching your nose and blowing your nose correctly
In the event of a cold, blocked nasal passages, and yellow snot or clear water that cannot be blown out, the correct method is to hold down one nostril, blow the other nostril, and then alternately operate.
But some people press both nostrils at the same time when blowing their nose, blowing hard
Text/Xie Jing (Beijing Friendship Hospital)