A little late to this response but, I think it depends on which route you took. I presently am working with a female PC and if the unwidow gets on me while i have squid suit, gamma clears both. Its possible that if your PC has a penis its permanent, but I havent tested
Is the decon spray a different item from the stuff you make? Normally I have to get all 3 vials and the other bits to make whatever I use to get parasites off
I could have been using a different combination or smth, as one time i got a Malice, then Squiddy boy, and whichever one i used ONLY got rid of squid, and not malice.