no, you are not succussing, just using it as an aqueous dilution.
and I'm definitely not saying that if you use a remedy correctly your immune system is not being challenged. What I tend to see, with a good remedy is that you still have the symptoms, but they aren't as severe and don't last as long-but your immune system still gets to exercise. I just worry when people want all symptoms to disappear right away never to be seen again.
A stronger constitution can handle acute situations more easily, in general so yes. That's why many homeopaths would say they like doing the foundational work.