Incidentally, I just wrote another (pretty long) reply mentioning just that. Based on my own very unusual medical history I suspect that maybe you should not wa

Incidentally, I just wrote another (pretty long) reply mentioning just that. Based on my own very unusual medical history I suspect that maybe you should not want that. Of course I know nothing for sure at all, it's just that observing my own healing process I was pretty much force to conclude that at least sometimes there may be more to a cold than just "a cold", that it may (can sometimes) have an effect that is not just "I happened to be sick for a week", that it actually does something. Even if my own very personal reasons and thoughts turn out to be wrong, what about training of the immune system ("training" is not a good word because what does it even mean, but there must be some feedback effect, surely)? I snot having any little issues at all for decades really good? I think there are endless feedback loops and it's all a lot more mixed and complex. I would be skeptical that such a magic pill would be net positive.