 Specific Body Air Cavities and Reverse Block
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■Middle Ear
If you feel reverse block pain in your middle ear upon ascending, descending briefly and then re-ascending slowly should resolve the issue. You can also move your jaws forwards and backwards, or swallow to stop the reverse block. |
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① Eardrum
② Middle Ear |
An Ear Experiencing Reverse Block |
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③ Air |
An Equalized Ear |
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■Sinus
Whether due to irritation from a cold or allergies, or overdoing the valsalva maneuver, bleeding in the sinus cavities is a cause of reverse block. If you are experiencing any bleeding, you shouldn’t dive. |
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① Air
② Healthy Sinus
③ A Sinus Experiencing Reverse Block |
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Better not dive
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