I take lots of panadols and quit smoking until I start to feel better. Once I got sick for 10 days straight and until I stopped smoking I didn't get better so I learned from it.
But I read somewhere that you shouldn't stop working out even when you get sick it helps you recover more quickly.
When you develop understanding with your body no presence of medicine remains. There are ailments where body demands medicine but it is for short and limited time, after that it takes it's normal and healthy course.