Weaken radiation, or change it somehow probably

[Azungar]

I'm really not sure about the amount of actual toxin damage that you take but there doesn't seem to be a max cap. During one of my gimmicks, I forced a player to have radioactive mutation on them and they easily outhealed it with just basic anti-toxic medication. They just had a ton of it in their bloodstream. That being said, I think the amount of tox it does to you really varies on the source.

That being said, I think logarithmic scaling would be a good way to go about it. Not really sure if it'd be worth the effort since I think our radiation damage sources are rather limited. (One event, one super dangerous place, one material, a couple chemicals.)