Wel i have these a lot and wat helps is to cover your ears
The noise made during a yawn is due to the sudden intake of air expanding the eustachian tube in your middle ear, which can create a "popping" or "clicking" sound. This is a normal physiological response and is nothing to be concerned about.
You can move to a quiet location, wear ear plugs or noise canceling ear phones, or do something pro active to stop the noise outside. Good luck with this!
What causes. Clicking. In my left ear only
It will depend on what noise levels he is being exposed too. Simple roll up ear plugs do work great. Otherwise you can buy the more expensive noise canceling type ear muffs that stop sound from reaching the ears.
Loud Noise And Explosions may damage the ear drums...
ear plugs
The noise reduction rating of these ear muffs is 25 decibels.
try to deal with at as best you can. the main key is to stay calm.
Over the ear offers better noise isolation.
The dB rating of ear muffs for noise reduction indicates how much sound they can block out. The higher the dB rating, the more effective the ear muffs are at reducing noise.
Tinnitus
Ear plugs can provide a maximum noise reduction of around 30 decibels.