Pinch the nose and ear drumming, if the force is not appropriate, too much strength is likely to lead to eardrum cracking, the formation of eardrum perforation.
First of all, from the anatomical structure to analyze, the human middle ear cavity is through the Eustachian tube pathway with the outside world traffic, Eustachian tube pharyngeal opening in the nasopharynx. When you pinch the nose and puff the gas can reach the middle ear cavity through the Eustachian tube, if you puff too hard, the pressure in the middle ear cavity increases sharply more than the tympanic membrane’s ability to withstand, it may cause the tympanic membrane to split.
Therefore, when we pinch the nose to puff, we must choose the right strength, do not use too much force.
When blowing the nose, avoid pinching both sides of the nose at the same time to blow the nose, you can choose to hold down one side of the nose alternately to do nose blowing, do not blow the nose too much force, you can avoid the pressure in the middle ear cavity is too high.