Dissolvable nasal packing - how long to dissolve?

I had septoplasty and right spread graft 5th July 2016 (3 days ago). I have dissolvable packing and I still can't breath at all through my nose. This is driving me insane and making me quite anxious. Typically how long until this packing dissolves and I get some air through my nose? I'm using a saline spray regularly. Thanks

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