I don't know where it says we can't take care of ourselves and our health. If you're taking NyQuil to get drunk that's one issue. If you're taking it to unplug your sinuses it's OK in my book. If you drink mouthwash to get drunk then you have an issue that needs to be dealt with. If you're rinsing that nasty morning breath out of your mouth then Go for it.
I think there's a lot of over reacting going on in the sobriety game.
If I have to tip toe on eggshells because I can't live a normal happy life then somethings wrong.