and she tried to eat the tissue

My moosh has her second cold (I kid you NOT! Her first was in April) so she has no idea why her nose keeps running into her mouth (we've reached a whole new level of grossness with that ROFL!). I'm tryiung to teach her to blow when I hold the tissue up but everytime I bring it to her nose she open her mouth to eat the tissue so gross!

Oh, and yes before you all suggest it, I'm now using a cloth wipe instead of a tissue

Oh, and any ideas on how to teach her to blow when I hold the tissue/wipe up?