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Eyegore, that's an extremely long time to have otitis externa. It often gets better within two weeks even without drops. Yellow fluid is probably an indication of an inner ear infection...you may want to at least get some antibiotics. Good luck

Just to cap the thread, here's an update following my trip. -I had no change in pain from diving deep (I went to 130ft) -Go to a doctor and get eardrops, and antibiotics too if it's more internal than regular otitis externa -I bought some Hydro Seals earplugs and used them on the trip. No...

Hi fellow divers and thanks for your time! Let me start by saying that I understand the causes and treatments of otitis externa, namely that getting wet is not recommended with OE. I'm looking for empirical evidence here, not opinions or judgements. This week I'm going to one of the world's...

I haven't. Yes, my thoughts too...

You're making an incorrect assumption, being that I do know that more O2 limits your depth. I asked this question because I was pretty confused as to why Spare Air sells nitrox versions. Maybe you're past it, but I'm not yet at the stage of experience where I can assume that I know everything.

Without doing any math (or having experience with backups) I considered that it could affect the gases in your body. I was wondering why they sell nitrox versions of Spare Air. But good point--I guess regular air is better than no air...

Say I have Spare Air (the air model, not nitrox) and I have an OOA situation on a nitrox dive. Am I correct in assuming that it's safe to switch to the 20.9% backup for my ascent? I can't wrap my head around it at the moment.