Congested Nose After Sinus Surgery?

It is normal to have nasal congestion and blockage this soon after sinus surgery. Like your surgery said, there can be dry blood and mucous. Also, the nasal skin lining will become swollen after surgery and it takes time to calm down.

Your surgeon may have mentioned that nasal rinses or lavage may be helpful in helping to clear out your nose.

Thanks for your question, I am sorry to hear that you are having this problem. Generally speaking there will be severe congestion after a nasal surgery for around 1 week. At the end of that time after the nose is cleaned, you should be breathing much better. Occasionally you may get some minor congestion for the first few weeks due to crusting, but it is generally still better than before surgery. Hang in there and be sure to address your concerns with you surgeon. 

Crusting and mucous congestion is very common after nasal and sinus surgery. This may be caused by any combination of dry blood or secretions in the nasal cavity, that can take weeks to clear. Sinus irrigations may help with this.
Post-op visits with your surgeon should help with clearing the sinuses, as in some cases they may have to debride the sinus cavities to make sure they are healing adequately.
Discuss your case with your doctor, and make a follow up appointment for an evaluation. Best of luck.