The hand with spots isn’t terrible, until I overthink it and realize that rashes don’t happen on the hands much. There’s a nice one of someone with spots on his body who is scratching himself, but that’s hard to make small . I was looking for something with a pill inside a circle-backslash, but I didn’t find one on quick search. In the absence of a truly outstanding candidate, whatever is consistent and understandable is fine.
I’m okay with a trash can or an X for delete, although if an X I think it should be one of the more stylized ones such as this stylized X, so as not to confuse it with a close-window icon.
I agree with @ball that a word is better than an icon for Activate or Inactivate, since I don’t see an icon that is clear and common enough for this very precise action.