>>4224193 lb
How about soaps, detergents? , bath water maybe triggering not rinsed soaps out from cloths or cleaners in the tub. Try eliminating those things first, febreeze, carpet freshener, so many things used in households that can cause hives and so on. Your perfume. Sorry, I know from experience, it's rare, but warm bath water sensitive skin, watch the temperature of bath water. Playing in the grass can cause problems. How many kids today get to play in the mud? How do you build up your body's defenses? Yeah, lots more thing in the mud these days, we are weakened.