Hearing is seriously impaired until the ears are emptied.
The ears are emptied the same way they are filled; by repetitive equalizing and de-equalizing, except with air. I suppose also that tilting the head and moving the jaw may cause some water to spill out. However, the ears cannot be instantly emptied; more often than not some water will remain for many hours afterwards, further increasing the chance of infection.
Eric Fattah
BC, Canada
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