You may have injured your ears a little bit. ... that is caused by fluid buildup in the tissues of the middle ear, usually due to improper equalization, and it generally goes away on its own when the swelling goes down.
On my last dive trip I had drastically decreased hearing in my left ear after having had difficulty equalizing. I thought there was water in the ear canal, but when my ENT looked everything looked fine. Recently I visited an ENT who used to be a Navy dive doc. He told me I probably had traumatized the INNER ear. This apparently results from
trying too hard to equalize. You put too much pressure into the middle ear, which results in high pressure being transmitted to the inner ear. Inflammation builds up in the inner ear, resulting in decreased hearing. It took about 4 days for my hearing to come back.
So what I learned is:
- Take as much time as you need to descend.
- If you feel pain, don't just equalize right there. Ascend a few feet and then equalize.
- Once you equalize, don't keep equalizing unless you still feel the pain (or unless you're still descending).
I'm at the tail end of the Cozumel Invasion, and have had great success with this approach. Which is wonderful, because I was afraid I'd have to give up scuba diving.
Last night on the night dive it took me 13 minutes to descend to 30 feet. I took my time. Fortunately Pete (NetDoc) was my buddy, and was totally okay with my taking that much time.
And today, after having had trouble equalizing the previous night, I had no trouble at all equalizing. Got to 20 feet within 30 seconds. Which is great, because that meant the slow approach when you're having trouble is the way to avoid damage to the ears.
I should also say that the ENT who had been the Navy dive doctor also suggested some other things, which I've implemented on this trip:
- Afrin nasal spray (decongestant)
- Fluticasone nasal spray (steroid)
- Motrin (Advil, ibuprofen) 600 mg 3 times a day (altho I've only take it twice daily)
- Sinus Rinse (or some other nasal irrigation)
But on all the other 11 dives of this week I've had no trouble equalizing.
You know, equalizing is a major skill. I mean, it's very important, but under-taught in my opinion. Perhaps because of all the people who have no trouble equalizing.