How do I cure my wetsuit induced rash/skin irritation?

I went rafting earlier today and we had to wear all sorts of gear including a wetsuit and a wetsuit type jacket. I didn't notice it until after I showered but I have a colorless rash on the entity of my back, my shoulder blades, and slightly on the top of my belly. I'm pretty convinced that it was caused by the wetsuit because all those areas were exposed. I think it might be the chemicals that the wetsuits were dunked into to be disinfected before we could wear them. This rash is affecting a lot of areas of my body and I'm very self-conscious about my skin in general.
Any help would be greatly appreciated. Thus far I have only showered and changed in clean loose clothing so any further instruction as to how to get rid of the "rash" would help. It does not itch and I do not care to wear another wetsuit. If it turns out I'm allergic to neoprene so be it but how do I get rid of the rash!?
Thanks