ringing ears ??

[LKunze]

I too use Auro-Dri after each day of diving to prevent ear infections. You can also make your own home brewd formula mixing up some vinegar/alcohol/peroxide. I find if I do not put in drops after diving, especially in the summer when the water is warmer and there is more nasty stuff in the water that I will develop ear infections. I have had no problems at all when I remember to use drops regularly. I've had a couple ear infections in the past that took a week to clear up with antibiotics because I forgot to use drops.
Another helpful tip is to make sure you clean your ears regularly especially if you tend to build up a lot of earwax like I do. You can have this done at the doctor or you can do it yourself. I use the device in this link to clean my ears once every couple months or so and it works great. It's very easy to use and it will not damage your ears if used as directed. It works just like the ear syringes the doctors use except the tip is angled so you can use it yourself in the shower instead of needing someone else to do it for you.