Theres quite a few things people use as lube, I use the cheapest conditioner I can find and mix a squirt or two with 2L of water. Theres also some hypo allergenic soaps that contain no colourants and perfumes that you could try, just mix up the same way. Its hit and miss really.
Regarding equipment cleaning after every dive I soak my suit and other body gear in the tub with some savlon (dettol) in the water and then just rinse with the rest of the gear under the hose. This gets rid of all the nasties and the smell too. Hope this helps.
If all else fails try not to piss in you suit 
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Dive safe and shoot straight
- Hénré -
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"Thinking is the hardest work there is, which is probably why so few engage in it"
- Henry Ford -
