She's gonna blow

So I really have no time to be blogging right now, but am desperate for some help. Please--help me! How can I teach my 3-year old to blow her nose? We've conquered the stubborn attitude and she's actually trying to do it, but is not successful. Each time it takes her a minute to remember to blow out instead of sniff it up--but even once she's blowing out, she won't blow hard enough to get the snot out! It's literally about to make us crazy as she is sick with a cold, feverish, whiny and can't breathe through her nose. The sucker does not work--this is stuff that's up in there and must be blown out.

We've tried every trick like the birthday candle, blowing the tissue's around, etc. The problem is not getting her to blow out--it's getting her to blow hard enough to get the snot out!

Help! Help! Help!