I had Endoscopic Sinus Surgery five days ago, and notice dark red nasal discharge?

I just had Endoscopic Sinus Surgery five days ago.?
I had my Surgery fived days ago, my doctor recommended that I do nasal Irrigation twice a day. but when I do that, thick dark red almost brown stuff comes out of my nose in chunks. is this normal?
Answer:
YOUR IRRIGATION IS DONE TO JUST GET THAT STUFF OUT !

DONT WORRY IT WILL KEEP ON COMING FOR SOMETIME ! ONLY WORRY IF IT IS FRANK BLOOD COMING CONTINUOUSLY , WHEN YOU NEED TO GO BACK !

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