Only had them 12 days before the pain. Doc says I wore them for too a prolonged time in very hot humid weather while sweating profusely. Gave me an antibiotic and said take em out when wearing
other ear muffs while cutting wood with a chain saw.
That makes a lot of sense. First off, moisture is bad for electronics. Too much water in or even on the aids will result in them cutting in and out on you, and giving you static. And the extra humidity in your ear being kept there and rubbed into the sensitive skin in your ears by a device in them … that sounds like a recipe for disaster. Secondly, you are wearing hearing protection for a noisy job, not to mention dusty and dirty job. Why keep the aids in then? It sounds like you are intentionally trying to damage both yourself and the hearing aids 
Also, if you insist on getting them that wet, I would strongly suggest purchasing a Dry and Store electronic hearing aid dryer. The passive type jars with beads would not help you in the least, and your aids would soon be going in for repairs … again … and again … and again. In fact, an active dryer such as the Dry and Store, which blows warm air through the aids overnight while you sleep is a good idea whether you are a sweat demon or not. It will save you lots of headache and doing without time.