Do you have a squeese bottle of "Swim Ear"? Its an alcohol based ear drying agent but it also of course softens ear wax. You can essentially flush your own ears with it, and of course it removes water after swimming or showering. I think some eye washing solution and swim ear and insect reppelant are three small bottles worth keeping with you camping. Oh I guess "After bite" an ammonia based product is also worth its weight when a need ariises to use it. I was bit by a spider in the garden yesterday and put After Bite on it - no mark or swelling today. It should sting, that means the ammonia has gotten into the wound and is neutralising toxins by reacting with them.
Jim