Medical patch should have an application delay for non-doctors

[warcrimes]

What if styp/sulf patches didnt work if there is already styp/sulf in your blood. Specifically to nullify patch spam

Hey hey hey! 
This right here! 
functionally works as a cooldown effect instead of a delay, that's nice
also punishes people with Slow Metabolism who tend to have better chances of being stimmed-up before a fight! 
+1